HEXplore It: The Valley of the Dead King – Klik's Madness Campaign Book

This choose-your-own-path, board game/novel hybrid, is an ambitious product whose story takes place in the Runecrest Valley, before the Dead King arrives. Play through the Valley of the Dead King (Volume I) in an entirely new way and experience the unfolding of a complex and epic story. Your heroes will be pulled into the narrative and will drive how the story unfolds based on the decisions and actions you make.

-description from publisher's website