So fast and pretty crazy.

John Taylor is hired to find the unholy grail. The cup used by Judas at the last supper. His employer is the vatican but there are other people searching for the grail, and other denziens of the nightside including angels from both above and below. John recruits Shotgun Suzie to help him.
In this one you find out more about John and he learns more about the world that is the nightside and his place in it.

This was okay. Basically, the book takes us back to the Nightside, a part of London that exists in a sort of pseudospace around the rest of the world. In Nightside, it's always three in the morning, and humans walk alongside the worst of demons, wizards, and other urban fantasy stuff. It's dark, macabre, and quite gruesome in places.

Enter John Taylor, who was introduced in the first book of this series, and returns for this one. This time he has been asked to find the unholy grail (the cup that Judas drank from at the last supper). The angels of light (and dark) are all after it, and it could be an early judgement day if Taylor's intense psychic gifts don't find the cup first - and he doesn't figure out who to give it to...

A good (enough) story, I quite liked the unfolding character of Suzie Shooter, who hadn't been explained in the first book all that much. She definitely has a back-story suitable to the Nightside, however, so be forewarned.