The Book of Mystic Wisdom

The Book of Mystic Wisdom is included with Ultima IV as a companion manual to The History of Britannia, detailing the mechanics of Britannian magic and its individual spells. It is 61 pages long and written by Dave Albert, fictionally as Lord British's court magician Philpop the Weary. The book appears in the introduction sequence of Ultima IV when discovered by the player's in-game counterpart, who shies from opening it for fear of its ominous appearance.

Within, the following topics are described:
 * The reagents of magic
 * The 26 magic spells

The Book of Mystic Wisdom contains many large illustrations, including one to accompany each spell. Metallic gold runic text is inscribed into the faux-leather cover, however some editions of the manual lack this embellishment.

Translated, the runic script framing the cover reads, "Being a compendium of the processes and effects of combining human will and natural forces as discouered [sic] and recorded by the greatest sorcerors since the beginning of time."