Croglin

Croglin is a recurring character in The Book of Falling by Rob Pegler.

Croglin is a vampire, apparently of a more base and cowardly breed than most of those who inhabit the city of Roseburg. Skulking, rat-like and heavily-scarred, he lives in a small makeshift crypt in the basement of the abandoned Hotel Fasteaux. Croglin has a special affinity for rats, over which he seems to exert some control, using them as his spies, messengers and even assassins (whether this is achieved via telepathy, pheromones or sheer will is anyone's guess).

Croglin's main function in the undead underworld is as a source of information - he knows everything that goes on in the city, and will sell secrets to absolutely anyone for a price. Meliad considers him her best informant, though she is careful about trusting him since she knows he also works for the vampire clans. Thus far she has kept him a secret from Gabriel Pope, who would find it unacceptable to work with a vampire. Mel also suspects that Croglin may have been indirectly involved in the killing of Gabe's father, but has let the matter rest because "there are always compromises to be made".

As his name suggests, Croglin is based on the Vampire of Croglin Grange. In fact hints dropped by Mel during one of their conversations imply that he may actually be the vampire in question.

Croglin appears in "Agenda" and "Molech and the Filth".