The Blood Book
Ted Dekker
 Ba'al commissions General Mustul and alchemist Grushon to study and document a variety of mythical creatures from their world, including the fearsome Shataiki bats and their interesting counterparts, the Roush. Ba'al compiles their accounts into his journal, known as a blood book. He also includes stolen journal entries from his enemy Thomas Hunter and his master, the Shataiki queen Marsuuv. It contains sketches of various creatures and locations featured in Other Earth. A certain Blood Book, though not Ba'al's, as there were more than one, also plays a significant role in the plot of Immanuel's Veins, as the main character Toma Nicolescu uses the information contained within to defeat the villainous Vlad van Valerick. It appears that the concept of Ba'al's Blood Book was adapted after the release of Immanuel's Veins, as it contains both new and different content than what was mentioned in Immanuel's Veins, and is missing certain other details. A man whom Toma called Saint Thomas the Beast Hunter is implied to be the one who penned Toma's Blood Book. Ba'al's Blood Book was also mentioned briefly in Dekker's novel Green, as it was compiled only about a year before Green took place.