Dungeons and Dragons 4th Edition Dungeon DelveDungeon Delve(TM) is designed for groups looking for an exciting night of monster slaying without the prep time. It contains dozens of self contained easy to run mini dungeons, or "delves," each one crafted for a few hours of game play. The book includes delves for 1st to 30th level characters, and features dozens of iconic monsters for the heroes to battle. Dungeon Masters can run these delves as one shot adventures or weave them into their campaign.