Book Worms: these small worms voraciously eat parchment, vellum and papyrus, destroying books and scrolls. They are very difficult to detect, requiring a Bibliophile skill check or INT d100 to find before they do damage. The smoke from the herb vermifuge will destroy them. While they will destroy most written material within 1 hour of infestation, occasionally, they will enter a torpor, based on the ink/paper composition and will not finish the job. When this happens, the book is called a “wormy book” and lies as a trap for the unwary. The worms in a wormy book will be awakened and ravenous when the wormy book is brought near new books or scrolls.

Bugbears: surprise modification is replaced with Move Silently Skill

Demons: In addition to any other special abilities, all demons have 50% resistance to spells and other magic, and they can only be harmed by silver or magic weapons.

Satyrs: surprise modification is replaced with Hide in Forest skill