As you have seen throughout the Crispin Guest series, sometimes the relic is forefront and sometimes it’s only a McGuffin, the thing that propels the plot forward. In this instance, it was definitely in the McGuffin category. In the next book, however, it comes to the forefront. A blood relic – Jesus’s blood in particular – was the holiest and most prized. And so Crispin must pursue an old nemesis, acquire yet another romantic entanglement, and still keep his wits about him when the crimes of thievery, blackmail, and murder come right to his doorstep in Season of Blood.