Agents of Light and Darkness by Simon R. Green
Taylor’s always got a case. In this one, he’s tasked with finding the Unholy Grail. The cup Judas drank from at the Last Supper. Again, Nightside’s always filled with some sinister characters, all of whom want the grail from John Taylor. So searching for the grail usually means going and finding a minor power and beating the hell out of the them, then beating the hell out of one of the almighty powers of the Nightside the minor power talked about, and then going to Strangefellows, the oldest bar in the world, where some mystical power comes after Taylor and he beats its ass. Then the dark forces after Taylor send the Harrowing — faceless terrors that can rip John to pieces. Someone or something intervene and save him. And then he fights the big baddie, the twist is revealed, and alles gut.
Formulaic but interesting. More like an SVU episode. It’s all the same but there’s a slight build in the ultimate mystery — who is John Taylor’s mother? The mysterious great power that is supposedly returning and will lead to the end of the world if not stopped?
We don’t get that in this book. Instead, there’s a giant all-Nightside war between the Angels and the Demons, both of whom want the Unholy Grail for themselves. John’s been hired by a priest from the Vatican — who of course isn’t all he seems. Anyway, the day is saved, and we move on to the next Nightside distraction.