THE RETURN OF TIAMAT! Defy the Queen of Evil Dragons in this adventure for the world’s greatest roleplaying game. Tyranny of Dragons combines and refines two action-packed Dungeons & Dragons adventures—Hoard of the Dragon Queen and The Rise of Tiamat—into a single sweeping campaign. It also includes a gallery of concept art providing a behind-the-scenes look at the creation of an epic adventure spotlighting Tiamat, one of the most legendary foes in D&D.