Ordinary Gods and Monsters by Chris Womersley

Publisher's Synopsis

It could have been any summer evening, but of course it wasn't.
It was the end of some things, the beginning of so many others.

Nick Wheatley has finished high school, but he isn't ready for the rest of his life. His parents are getting divorced, his sister is downright weird and his best friend and neighbour, Marion, seems to have acquired a boyfriend.

One hot night, Marion's father is killed in a hit-and-run. There are no suspects and no leads. But a sly tip from the local psychic sends Nick and Marion into the undertow of a strange and sinister world they hadn't known existed in the suburbs - one of inscrutable gangsters, speed-dealing bikies and unpredictable, one-eyed conspiracy theorists.

It's a world they'll be lucky to survive.