King Ertide Hostain was once known as the Crimson Prince. He fought side by side with angels and pegasi and defended the Sant Dien Empire against monsters. But his pact with Heaven has become strained. He has grown old, his body rots, and he has yet to choose which squabbling prince will be his heir. The Hostain dynasty has ruled over the empire for millennia, but when Ertide finds cryptic notes from his dead father, he realises not all is as it seems. Has history been rewritten? And if so, what is heaven hiding? Immortality has a price, and it is paid in blood.