The encounters in the Book of Challenges include straightforward traps (such as a domed room with a hinged floor that serves as the hidden lair for a beholder).

It also includes challenging logic puzzles, riddles and even role-playing encounters where combat or mechanics skills play a secondary role.

All of the Treasure, None of the Traps—A series of already-sprung traps in a spiral corridor that automatically reactivate once the players reach the center.

Fire and Water—A logic puzzle that connects the pulling of colored levers with musical tones to prevent the players from accidentally unleashing either lava or rushing water.

[3] James T. Voelpel of mania.com commented, "This new supplement has whatever a dungeon master needs to properly confound any adventuring party if you need an encounter on short notice.