The Book of Prophecies

The Book of Prophecies is one of the three holy books of the Gargoyles (one of the other two is the Codex of Ultimate Wisdom). In it, many prophecies are written down, with the prophecy of the False Prophet being the most important one. On the cover is a picture of a gargoyle standing triumphant over a fallen human.

The book had an immensly important role in Ultima VI. Iolo snatched it while rescuing the Avatar from being sacrificed. The Avatar showed it to Mariah after getting a tip from Nystul. She was able to decypher the title, but only with the Silver Tablet, she could translate it. The Avatar, now knowing the motivations of the Gargoyles, tried everything from that point to save the Gargoyles from destruction and stop the prophecy from being fulfilled.

Trivia

 * Quite interesting, that the cover of the Book of Prophecies is a mirror image of the Game Box Cover of Ultima VI, where the Avatar stands triumphant over a dying Gargoyle.