From publisher blurb: Halls and tunnels. Stairs and doors. In the dungeon, anything and everything can be trapped. One Page Number Thirteen provides twenty unique traps designed for use in these transitional spaces, ready to wound, snare, or just confuse your players. The One Page series gives the GM instant access to random tables full of woodland landmarks, strange objects, minor treasures, clever traps, and more! Each One Page product contains twenty unique, system-neutral entries in ready-to-roll format. Each entry can be easily adapted to any fantasy role-playing game.