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|   The cover of the Crystal Spheres module, with art by Brom. The artwork depicts the Hummingbird, swooping past a darkened sun. | |
| Code | SJA3 | 
|---|---|
| Rules required | Advanced Dungeons & Dragons 2nd edition | 
| Character levels | 5-7 | 
| Campaign setting | Spelljammer | 
| Authors | J. Paul LaFountain | 
| First published | 1990 | 
Crystal Spheres is an adventure module published in 1990 for the Advanced Dungeons & Dragons fantasy role-playing game.
Crystal Spheres is a Spelljammer scenario in which the player characters encounter a unique ship, called the Hummingbird, and its captain asks them to help save his homesphere from a mysterious bard called T'Lann.[ citation needed ] It describes "four new crystal spheres": [1]
SJA3 Crystal Spheres was written by J. Paul LaFountain, with a cover by Brom, and was published by TSR in 1990. [1] The 64-page booklet included a poster and an outer folder.[ citation needed ]
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Shannon Appelcline commented that the module "does a great job of providing good reasons to adventure across Wildspace from one sphere to another", however, the Spelljammer campaign setting "never brought together its many spheres into a coherent setting" and the spheres introduced in this module "would never be heard from again". [1] Appelcline highlighted that "Crystal Spheres lies on the line between the adventuring tropes of the '80s and '90s" and "also includes a beautiful chart comparing the sizes of the many spelljamming vessels revealed to date – including the Hummingbird from this very adventure". [1]