The Undying War is an Adventure Path that begins in the verdant fields and loamy earth that lies along the banks of the Drunberry River, beneath the shadows of the Blacktooth Ridge. Here the party runs afoul of Gritznak, a gnoll of evil temperament. Thus begins an adventure that begins in the plundered ruins of a peasant’s barn, and ends before the gates of Aufstrag. There the characters battle or barter with the tower’s keeper Coburg the Undying, for luck and skill play their hands, they’ll have the Lady of Garun in hand, the one that Coburg loves more than all the power and majesty the world may offer.

The Undying War is divided into 13 adventures, an introduction and several possible endings.