Dungeons & Dragons 4th ed. Dungeon Masters Guide

The Dungeon Master's Guide gives the Dungeon Master helpful tools to build exciting encounters, adventures, and campaigns for the 4th Edition Dungeons & Dragons Roleplaying Game, as well as advice for running great game sessions, plus details on ready-to-use traps, non-player characters, and more.

Image: Dungeons & Dragons 4th ed. Dungeon Masters Guide  - Wizards of the Coast

Dungeons & Dragons 4th ed. Dungeon Masters Guide