The Ultima VI Clue Book: The Book of Prophecy is 75 pages long and contains maps and descriptions of all the towns, dungeons, and other major locations in Ultima VI. There is also a complete walkthrough, as well as information about the cost of items, trainer locations, etc. The Gargish Alphabet is also included, with a Gargish-English and English-Gargish dictionary of common words. It originally retailed for USD$12.95 and was published in 1990. It was written by Dr. Cat (a.k.a. David Shapiro).
The clue book is written in a narrative style, in the form of a letter to the Avatar from Taynith and Mandrake. Mandrake generally handles the descriptions and gives general hints, while Taynith's additions are more specific.
- The Book of Prophecy (PDF)