Tome of Tomes

Crawlers of the Underdeeps
Author: Argar Ironfist
Race: Dwarf
Dimensions: 16x16x5
Weight: 25 lbs.
Materials: Drowskin-bound, chitinboard, vellum, brass corners and clasps
Rarity: Very rare
Fields of Study: Fauna
Special Knowledge Categories: Arachnids, crustaceans & mollusks, insects
Value: 550 gp

This rare work describes and illustrates the majority of things that crawl and creep in the underdeeps.  Reading the work and digesting its contents requires a month’s time, but afterwards, the reader gains insight into the behavior of said creatures, granting him several abilities when fighting one of the crawling creatures described by Ironfist: the reader can only be surprised on a 1 in 6, gains a +1 to hit and to damage, and gains a +1 to saving throws against poisons.