Looks like Damliche Damonen (Demonkeeper) has come out in Germany. Amazon Germany has it ranked (it looks like it's an instant ranking for German books). Here's the link. At last check it it's #43 overall and #3 in Fantasy behind JK Rowling and the new Eragon.
Demons are all around us—most of them are relatively harmless, like the ones that go bump in the night or make you stub your toe. But some are dangerous—some can kill. Since he was orphaned as a boy, Nat has been trained by his aged mentor Daliwahl to be a demonkeeper, controlling a menagerie of demons in their old, rickety house in Seattle. But now Dahliwahl is gone and Nat is on his own.
Keeping demons isn’t a very social activity, and when Nat goes on a date with Sandy, a junior librarian’s assistant, it’s a disaster in more ways that one—while Nat’s out, a very scary demon called the Beast escapes. Can Nat get the Beast back to the house and make things right with Sandy—and do it all by himself?
With its fast-paced action, slapstick humor, and a winning, unlikely hero, Demonkeeper is a high-spirited romp that will keep readers glued to the page. Click here to read more about Demonkeeper and buy it on Amazon.