From publisher blurb: Since the dawn of fantasy roleplaying games, opening locks has been a staple of fantasy adventures. This mini-supplement for the worlds most popular roleplaying game is filled with information about locks and how to open them. Lock and Key includes: A real-world history of locks and keys Ideas for a fantasy history Variant Locks – Including real world items like false keyholes, and fantasy items like talking locks A random key generator 2 new traps 4 new magic items 3 new monsters