The entirety of the "A Vow of Blood" story arc collected into one book. Every book, every story, every poem in the story of the vampire Gaius and his family has been collected into this single tome.
"Livia insisted that I no longer prey upon humans, as she did not consider this to be honorable. She thought that I should live only on the blood of animals. She even made me take a vow to that effect, on pain of never seeing her again. I took that vow. Livia had been my only source of human kindness. I could not give her up, now that we had found each other again..."