Twilight at the Towers is a novelette written by Clive Barker. It was first published in the 1985 collection Books of Blood, Volume VI.
Plot[]
A British spy named Ballard stationed in Berlin meets with a KGB counterpart named Mironenko. After their meeting, Mironenko disappears. As Ballard investigates, he witnesses a vicious mauling, which in turn, leads him to discover that he and Mironenko are both werewolves, trained by each agency to defeat the other. Both governments raid their meeting place, causing Mironenko to transform fully. Ballard runs and wakes up in a fellow operative's house. Ballard's rival, Suckling, arrives and kills the agent, only to be killed by the transformed Ballard. Ballard seeks Mironenko, and finds him reading to a group of werewolves from the Holy Bible. The passages he's chosen strongly imply that Mironenko believes God wants them to rule over humankind.