The Ghost King: Dungeons & Dragons: Book 3 of The Transitions trilogy

To save Catti-brie, Drizzt Do’Urden must ally with a past foe and face a power that will change Faerûn forever in this gripping conclusion to the Transitions Trilogy

With the collapse of Mystra’s Weave and the onslaught of the Spellplague, all of Faerûn is thrown into chaos. But as magic turns more dangerous and unreliable, an even greater foe presents itself: the Ghost King, an entity that contains the combined might of a dragon, a mind flayer, and the Crenshinibon—the demonic crystal shard...