Agents of Light and Darkness by Simon R. Green
John Taylor is back in Darkside - this time he is commissioned by a priest named Jude to finding the unholy grail, not for the cup that Jesus drank from, but the other cup, the Judas Cup, which provides both ultimate power and ultimate corruption.

If it was just John Taylor and an ugly silver cup this would be a piece of cake for John - find it and return it to the Vatican, who will hide it from all the powers, human and otherwise. But no such luck - everyone is after it. Demons, gangsters, and angels - thousands of them, good and bad, all prepared to end the universe to gain the cup. Knowing he is out of his depth, Taylor brings Shotgun Suzie on board, and together they challenge Armageddon.

It is funny as angels from both heaven and hell are after the cup and both are determined to torture, kill and destroy anyone who gets in the way. These angels appear as ordinary gray suited bankers or accountants until they burst into flames turning those who look into a pilar of salt. Except if you are holding the Speaking Gun, in the beginning God created things by calling their name, which can destroy things by Speaking their name. It will also kill angels. Go figure? Of course Taylor gets his hand on it from the nazis.

Green's books are not long but he manages to crame a huge amount of horrible images in it. I skim through those parts as I usually like the beginning and the ending makes me want to read more about Taylor. I know this is a pretty big series so will try another one out.

More in the series.
3) Nightingale's Lament
4) Hex and the City
5) Paths Not Taken
6) Sharper than a Serpent's Tooth
7) And Follow Darkness Like a Dream