Publisher's blurb: This adventure is designed for a party of three to six characters of 3rd to 4th level, and of a non-evil alignment. It takes place in the Forgotten Realms, in the Dessarin Vale, as described in The Storm King’s Thunder and Princes of the Apocalypse. All encounters can easily be modified to fit either a larger or a smaller party. A middle-aged Doomguide enters Red Larch, followed by his near catatonic son, begging for aid. He pleads whoever can help and asks able bodied heroes to help him save his wife, Yiriala, from a warlock-wight that has a lair in the ruins of Ravenhold, an old dwarven tower in Kryptgarden forest. The tower and the dungeons below it are crawling with undead, making the ruins a very dangerous place. Will the PCs manage to unlock the secrets of Ravenhold and save Yiriala?