The Australian Boomerang Bonanza by Josh Greenhut (Hardback, 2011)

There's place on Earth a flat kid can't go!

G'day, Stanley!

Stanley and his brother, Arthur, have just won a trip to Australia! They fly down under on a private jet and go diving in the Great Barrier Reef. But when Arthur launches him into the air for a game of boomerang, Stanley is accidentally sent spinning into an amazing adventure deep in the heart of the Australian outback!