|Published||24 November 2009 - 3 April 2012|
Warriors: Omen of the Stars is the fourth arc in the Warriors juvenile fantasy novel series about feral cats who live in Clans. It is made up of six novels published by HarperCollins from 2009 to 2012: The Fourth Apprentice, Fading Echoes, Night Whispers, Sign of the Moon, The Forgotten Warrior, and The Last Hope. The novels were written by Erin Hunter, a pseudonym that refers to authors Kate Cary, Cherith Baldry, and Tui Sutherland, as well as plot developer and editor Victoria Holmes. Omen of the Stars details the experiences of Jayfeather, Lionblaze, and Dovewing, who, as part of a prophecy, have special powers. The arc's themes deal with forbidden love and the effect that being different can have on relationships. Though the Warriors series has appeared on the New York Times Best Seller list, none of the novels in Warriors: Omen of the Stars have won a significant literary award.
In the United States, hardcover and e-book formats for The Fourth Apprentice were published on 24 November 2009,   Fading Echoes on 6 April 2010,   Night Whispers on 23 November 2010,   Sign of the Moon on 5 April 2011,   The Forgotten Warrior on 22 November 2011,   and The Last Hope on 3 April 2012.   The first four books were also released on their respective dates in an audiobook format, read by Kathleen McInerney.     Paperback editions of each were released on 21 December 2010,  5 April 2011,  27 December 2011,  3 April 2012,  26 December 2012,  and 2 April 2013,  respectively.
Release in Canada generally preceded release in the United States by a few days. The Fourth Apprentice was released in hardcover on 24 November 2009 (same as the United States)  and paperback on 13 December 2010.  Fading Echoes was released in hardcover on 15 May 2010  and paperback on 5 April 2011.  Night Whispers was released in hardcover on 19 November 2010  and paperback on 19 December 2011.  Sign of the Moon was released in hardcover on 5 April 2011 (same as the United States)  and paperback on 26 March 2012.  The Forgotten Warrior was released in hardcover on 22 November 2011 (same as the United States)  and 13 December 2012.  The Last Hope was released in hardcover on 26 March 2012  and in paperback on 25 March 2013. 
|24 November 2009|
|Media type||Print (hardback and paperback), audiobook, e-book|
|Followed by||Fading Echoes|
The Fourth Apprentice takes place approximately six months after the end of Sunrise , during the summer, when the four Clans are suffering from a drought. In ThunderClan, sisters Dovekit and Ivykit become apprentices, being assigned Lionblaze and Cinderheart as mentors. While out in the forest, Dovepaw speaks of hearing and seeing brown animals (beavers) up the river building a dam, blocking the river's water and causing the drought, but no other cat believes her. Lionblaze realizes that Dovepaw is one of the Three foretold in the prophecy "There will be three, kin of your kin, who hold the power of the stars in their paws", of which he and his brother Jayfeather are also a part of. They each have a special power, and he realizes that Dovepaw's is the ability to see and hear things very far away (clairvoyance).
Lionblaze plans to travel up the stream and find a way to unblock it and bring the water back, a journey that would include a cat from each Clan. ThunderClan leader Firestar agrees, sending Lionblaze and Dovepaw to represent ThunderClan. After an initial failed attack on the beaver dam, in which RiverClan warrior Rippletail is killed, the patrol succeeds in destroying the dam with the help of a few housecats encountered during their journey.
Meanwhile, back in ThunderClan, when the warrior Poppyfrost secretly leaves camp to visit the Moonpool, a sacred location for the Clans' medicine cats, ThunderClan medicine cat Jayfeather follows her there. Upon arriving at the Moonpool, Jayfeather is attacked by his half-brother, WindClan warrior Breezepelt, who had also followed Poppyfrost to the Moonpool. The spirit of another cat whom Jayfeather doesn't know (Brokenstar), aids Breezepelt in the attack, but the spirit of Poppyfrost's sister, Honeyfern, comes to Jayfeather's aid and chases them away.
Jayfeather tells Lionblaze about the tom that aided Breezepelt, and Lionblaze confesses to meeting Tigerstar, the antagonist from the original Warriors series, in his dreams in the past. They realize that Breezepelt must have been recruited by Tigerstar to help fight in a war between StarClan and the Dark Forest.
|6 April 2010|
|Media type||Print (hardback and paperback), audiobook, e-book|
|Preceded by||The Fourth Apprentice|
|Followed by||Night Whispers|
The spirit of Hawkfrost, Tigerstar's son, begins to visit Ivypaw in her dreams and teaches her battle moves, pretending he is from StarClan. Ivypaw, still jealous that Dovepaw is keeping secrets from her and is praised by their clanmates, decides not to tell anyone about Hawkfrost's training.
The spirit of Tigerstar tells Ivypaw that giving a strip of territory to ShadowClan to avoid future conflicts has endangered ThunderClan. Ivypaw believes Tigerstar and tells Firestar that she had a dream from StarClan of ShadowClan invading because they believe that Firestar is too weak to keep his own territory. Firestar and the senior warriors decide to attack ShadowClan preemptively. During the battle, Lionblaze accidentally kills ShadowClan deputy Russetfur after she takes Firestar's seventh life. ThunderClan wins the territory back.
|23 November 2010|
|Media type||Print (hardback and paperback), audiobook, e-book|
|Preceded by||Fading Echoes|
|Followed by||Sign of the Moon|
Jayfeather unintentionally enters Ivypaw's dream, and discovers that Ivypaw and Tigerheart are receiving training from the cats in the Dark Forest.
Lionblaze and Cinderheart decide to do an early border patrol and run into ShadowClan medicine cat apprentice Flametail, who is angry with Lionblaze for killing Russetfur in Fading Echoes.
Dovepaw later uses her power to listen in on Lionblaze and Jayfeather, who are discussing Ivypaw's training in the Dark Forest, then confronts Ivypaw about it. Ivypaw denies that it is wrong. Dovepaw wants to try to stop her from going, but Jayfeather tells her to leave Ivypaw alone for the time being.
Blackstar, leader of ShadowClan, asks Flametail and his mentor Littlecloud, whether StarClan sent them a sign regarding the battle or not. When they reveal that there was no sign, Blackstar asks Littlecloud to go to the Moonpool to speak with StarClan. When Flametail arrives at the Moonpool, the spirit of Raggedstar, a former ShadowClan leader, tells him that ShadowClan must stand alone and not trust any allies.
In the Dark Forest, Ivypaw overhears Tigerstar telling Tigerheart during a training session that if Tigerheart cannot beat those "ThunderClan weaklings", he is nothing. Ivypaw, realizing that Tigerstar lied to her, flees. She then agrees to act as a spy on the Dark Forest for Jayfeather, Lionblaze, and Dovepaw.
Flametail falls through the ice on the frozen lake while playing a game with other apprentices and begins to drown. Jayfeather attempts to save Flametail until the spirit of Rock, an ancient cat from before the time of the Clans, appears and tells Jayfeather that it is Flametail's destiny to die, but not his. Jayfeather lets go of Flametail, who sinks to the bottom of the lake and drowns.
|5 April 2011|
|Media type||Print (hardback and paperback), audiobook, e-book|
|Preceded by||Night Whispers|
|Followed by||The Forgotten Warrior|
Jayfeather, Dovewing, and Squirrelflight visit the Tribe of Rushing Water, where Jayfeather receives a dream from the ancient cat Rock, who insists he go to the mountains, but he won't tell him why. While there, Jayfeather is sent back in time in dreams as his previous incarnation, Jay's Wing, to convince the Tribe's ancestors to stay in the mountains after journeying from the lake at Jayfeather/Jay's Wing's urging in Long Shadows. Realizing that the ancient Tribe has not yet gained a connection with their ancestors' spirits, he appoints the Tribe's first Teller of the Pointed Stones (also called Stoneteller, a role similar to Clan leader and medicine cat combined). He appoints Half Moon, a she-cat he had fallen for during his dream, then returns to the present day, where he appoints Crag Where Eagles Nest as the Stoneteller of the modern Tribe, because the old Stoneteller died of old age without appointing a successor.
New ThunderClan apprentices Cherrypaw and Molepaw have a run-in with a fox, but an unknown cat saves them. Lionblaze investigates, finding Sol, a loner first introduced in Eclipse who previously predicted an eclipse that briefly convinced ShadowClan to lose faith in StarClan. Sol says that he saved the apprentices and is welcomed by some, but not trusted by others. When Sol disappears, Dovewing and Ivypool follow him into the tunnels and discover that he is trying to cause a battle between ThunderClan and WindClan. While Dovewing and Ivypool are spying on Sol and WindClan in the tunnels, WindClan warrior Owlwhisker almost discovers them, but Hollyleaf, who was thought to be killed in a tunnel collapse in Sunrise but had survived, leads them to safety. Before she can re-enter the tunnels, Lionblaze arrives and convinces her to return to ThunderClan. Dovewing and Ivypool reveal that Sol is planning an attack on ThunderClan and that Hollyleaf was the one who saved the apprentices from the fox, not him. In preparation for the battle, Hollyleaf teaches ThunderClan battle skills useful in the tunnels. When WindClan attacks through the tunnels, ThunderClan repels the attack and ultimately wins, being more experienced in underground combat due to Hollyleaf's training. Sol runs off, never to be seen again.
|21 March 2012 (Canada)|
3 April 2012 (United States)
|Media type||Print (hardback and paperback), e-book|
|Preceded by||The Forgotten Warrior|
Jayfeather receives a prophecy informing him that there is actually a fourth cat in the prophecy regarding him, Lionblaze, and Dovewing. Jayfeather initially believes it may be Mothwing, medicine cat of RiverClan. However, divisions between the medicine cats due to the accusation that Jayfeather murdered Flametail in Night Whispers makes it difficult for him to speak to Mothwing. Jayfeather is granted safe passage into RiverClan territory, however, and Mothwing shows him a reed that has been smoldering for days, even after a heavy rainfall. Jayfeather takes this as an omen to find the spirit of Flametail in StarClan, although the divisions in StarClan make it difficult. When he finds Flametail, he convinces him to reveal the truth: that he had drowned and was not killed by Jayfeather. This revelation resolves the divisions among the medicine cats, who then unite StarClan in preparation for the final battle with the Dark Forest. Former ThunderClan leader Bluestar tells Jayfeather that the fourth cat in the prophecy is Firestar. The final battle between the Clans and the Dark Forest then begins, with both StarClan and Dark Forest cats taking on corporeal forms. It's not long before the battle begins spin out of control. The battle ends when Firestar kills Tigerstar's spirit, and then perishes himself, making Brambleclaw the new leader of ThunderClan.
Reviews for the series were generally positive. A reviewer for Booklist suggested that fans of the series would enjoy The Fourth Apprentice and called Dovepaw a "reluctant heroine".  A reviewer for Horn Book Guide praised the dramatic adventures and fight scenes.  It was also noted that Fading Echoes explores how having special abilities can affect relationships.  A reviewer for Booklist called Sign of the Moon a "bridge book", but praised Hunter for the quality of the novel and allowing readers to "get to know a few of the multitudinous cast" better. 
One criticism of the series came from both Beth L. Meister and Kitty Flynn writing for Horn Book Guide, who noted in multiple reviews for books in the series that new readers would have difficulty getting into the story due to the amount of required background information and numerous characters. However, they rated all six books four out of a six-point scale.       Meister also commented that themes often revolve around forbidden romances. 
The arc received a rating of 4.66 stars on Goodreads. 
Warriors is a series of novels based on the adventures and drama of multiple Clans of feral cats. The series is primarily set in fictional forests. Published by HarperCollins, the series is written by authors Kate Cary and Cherith Baldry, as well as others, under the collective pseudonym Erin Hunter. The concept and plot of the pilot series was developed by series editor Victoria Holmes.
Erin Hunter is a collective pseudonym used by the authors Victoria Holmes, Kate Cary, Cherith Baldry, Clarissa Hutton, Inbali Iserles, Tui T. Sutherland, and Rosie Best in the writing of several juvenile fantasy novel series, which focus on animals and their adventures. Notable works include the Warriors, Seekers, Survivors, Bravelands, and Bamboo Kingdom book series. Each of the authors play a different role in the production of the books: Holmes creates the plot for each book, and the others take turns writing the books. Dan Jolley, though not an official Erin Hunter author, also writes the stories for manga published under the Hunter name.
Fire and Ice is a children's fantasy novel, the second book in the Warriors series, written by Kate Cary under the pen name of Erin Hunter. The plot centers around Fireheart and Graystripe, newly promoted warriors of ThunderClan, which is one of the four groups of feral cats living in the wilderness. Fireheart learns that his best friend Graystripe has fallen in love with Silverstream, a warrior from RiverClan, even though it is against the cats' "warrior code".
Rising Storm is a fantasy novel, the fourth book in the Warriors series, written under the pen name of Erin Hunter. Rising Storm was written by Kate Cary. The series follows the adventures of four Clans of wild, anthropomorphic cats. The plot follows Fireheart, newest deputy of ThunderClan, struggling to complete his duties as deputy, while still knowing that the previous deputy, Tigerclaw, is lurking in the forest somewhere, seeking revenge against Fireheart and his Clan.
The Darkest Hour is a children's fantasy novel, the sixth and last book in the original Warriors series by Erin Hunter, featuring the fictional character Firestar, a cat. The series revolves around a group of wild cats living in four Clans, ThunderClan, RiverClan, WindClan, and ShadowClan. It was published on 1 October 2004, by HarperCollins. The story chronicles the events directly after A Dangerous Path and leads to the final battle for the forest.
Midnight is a fantasy novel, the first book in Erin Hunter's Warriors: The New Prophecy series. Following The Darkest Hour and Firestar's Quest, and preceding Moonrise, it was released 10 May 2005. The novel centers on a group of feral cats living in four Clans: ThunderClan, RiverClan, WindClan, and ShadowClan.
Starlight is a children's fantasy novel, the fourth book in Erin Hunter's bestselling Warriors: The New Prophecy series. The hardback was released on 4 April 2006 and in paperback on 27 March 2007.
Sunset is a fantasy novel, the sixth and final book in Erin Hunter's Warriors: The New Prophecy series. The book begins with the group of cats known as ThunderClan rebuilding its camp with the help of its old friends Stormfur and Brook following a badger attack in Twilight. As the book progresses, Brambleclaw and Squirrelflight overcome a previous conflict and fall in love again, but Brambleclaw continues to visit the spirit of his evil father Tigerstar in his dreams. Brambleclaw manages to convince ThunderClan leader Firestar to choose a new deputy to replace the long missing Graystripe and is surprised when he is chosen. Brambleclaw's half-brother Hawkfrost attempts to kill Firestar in order that Brambleclaw might become leader of ThunderClan, but Brambleclaw saves Firestar and kills Hawkfrost, fulfilling the prophecy "Before there is peace, blood will spill blood and the lake will run red".
The Sight is a children's fantasy novel. It was released on 24 April 2007, and it is the first installment of the Warriors: Power of Three series by Erin Hunter. The book was recommended as Children's Summer Reading by the Washington Post Children's Book Club.
Warriors: Power of Three is the third arc in the Warriors juvenile fantasy novel series about anthropomorphic feral cats. The arc comprises six novels which were published from 2007 to 2009: The Sight, Dark River, Outcast, Eclipse, Long Shadows, and Sunrise. The novels are published by HarperCollins under the pseudonym Erin Hunter, which refers to authors Kate Cary, Cherith Baldry, Tui Sutherland and plot developer/editor Victoria Holmes. Power of Three details the experiences of protagonist of the first series Firestar's three grandchildren, initially known as Jaykit, Hollykit, and Lionkit, whom a prophecy foretells will have "the power of the stars in their paws". The arc's major themes deal with forbidden love, the concept of nature versus nurture, and characters being a mix of good and bad. Though the novels have appeared on the New York Times Bestseller List and have been nominated for several awards, none of the novels in Warriors: Power of Three have won a significant literary award.
Firestar's Quest is a volume in the Warriors novel series by Erin Hunter.
Warrior's Return is an original English-language manga volume written by Erin Hunter as part of the Warriors series. It is the third and final in a trilogy following Graystripe, a fictional wild cat trying to find his Clan. It was released on 22 April 2008. It is drawn by James L. Barry.
Long Shadows is a children's fantasy novel, the fifth book in Erin Hunter's Warriors: Power of Three, and was widely released on 25 November 2008. The book follows the adventures of Hollyleaf, Lionblaze, and Jayfeather. The book has sold over 250,000 copies.
Sunrise is the sixth and final book in Erin Hunter's Warriors: Power of Three children's fantasy novel series. HarperCollins published it on 21 April 2009. The plot follows Jayfeather, Hollyleaf, and Lionblaze on their quest to find Ashfur's true murderer. It was originally to be titled "Cruel Season", though this was changed because HarperCollins, the series' publisher, felt it was too dark a name.
Code of the Clans is a field guide in the Warriors novel series. Code of the Clans is about the warrior code that guides the Clans in their everyday behavior and decisions.
Bluestar's Prophecy is a children's fantasy novel in the Warriors series by Erin Hunter. This is the second Warriors Super Edition, the first being Firestar's Quest. The book follows Bluestar from birth until her eventual rise to leadership in ThunderClan. It was published by HarperCollins and released on 28 July 2009. It was released in China on 31 July 2010.
A Clan in Need is one of three entries in a spin-off original English-language manga series based on the Warriors novel series. The book was published by Tokyopop on 23 March 2010 and drawn by James L. Barry under the pen name Erin Hunter.
Warriors: The New Prophecy is the second arc in the Warriors juvenile fantasy novel series about cats, who live in 4 established clans and follow a code to keep the peace between them from breaking apart completely. The arc comprises six novels which were published from 2005 to 2006: Midnight, Moonrise, Dawn, Starlight, Twilight, and Sunset. The novels are published by HarperCollins under the pseudonym Erin Hunter, which refers to authors Kate Cary and Cherith Baldry and plot developer/editor Victoria Holmes. The New Prophecy details the Clans' journey to a new home when humans destroy their original territories. The arc's major themes deal with forbidden love, the concept of nature versus nurture, and characters being a mix of good and bad. Though the novels have appeared on the New York Times Bestseller List and have been nominated for several awards, none of the novels in Warriors: The New Prophecy has won a significant literary award.
Warriors: The Prophecies Begin is the first story arc in the Warriors juvenile fantasy novel series about feral cats. The arc comprises six novels which were published from 2003 to 2004: Into the Wild, Fire and Ice, Forest of Secrets, Rising Storm, A Dangerous Path, and The Darkest Hour. The novels are published by HarperCollins under the pseudonym Erin Hunter, which refers to authors Kate Cary and Cherith Baldry and plot developer/editor Victoria Holmes. The sub-series details the adventures of the housecat Rusty, who joins ThunderClan, one of four Clans of feral cats living in a forest which adjoins the human town in which he originally lives. The arc's major themes deal with forbidden love, the concept of nature versus nurture, and characters being a mix of good and evil. Though the novels have appeared on the New York Times Bestseller List and have been nominated for several awards, none of the novels in the Warriors sub-series have won a significant literary award.