The Mark of Cthulhu

In this choose-your-own adventure story, you will "dive into the ruthless world of Lovecraft. You will meet the worst creature the world has ever known: Cthulhu, the ancient god who dwells in the seabed. The latter has been awakened and is determined to trigger the end of the world. With his relentless logic, analytical mind, and sense of observation, there is no doubt you will have to be better than the old God to hope to escape his mystical traps"--Back cover.