The Blood Book: Tales, Confessions and Rumors of the Worlds is a novel by New York Times bestselling author Ted Dekker, along with Kevin Kaiser and Josh Olds (with additional assistance from Gregg Hart). It is a part of Dekker's mega-series, The Books of History Chronicles. The book is compiled in-universe by High Priest Ba'al, and takes place in the far future in a world known as "Other Earth".