The Spectrum of Multiversal Beliefs

The Spectrum of Multiversal Beliefs was a collection of six volumes of scholarly musings on the philosophies of several factions found outside of the Prime Material plane.

Description
These six tomes were all written in Common and discussed in depth conflicting philosophies of various planar cultures.

History
The Spectrum of Multiversal Beliefs last recorded location was on the Crystal Labyrinth level of the mega-dungeon underneath the streets of Waterdeep, Undermountain. The tomes were among valuables of a githyanki named Urlon unguarded by his crystal golems in 1492 DR.

Appearances

 * Adventures
 * Waterdeep: Dungeon of the Mad Mage