Half Moon Investigations by Eoin Colfer
I picked up this book because I like Colfer. I've been reading his Artemis Fowl books for years. I'm also always in the market for audio books. I love listening to them in the car or while doing mindless computer stuff.
One of the things that I love about Colfer is how he's able to write for a younger audience (middle readers, I think), but produce books that are equally appropriate for adults. Half Moon Investigations is no exception. It features a pint-sized detective named Fletcher Moon whose playground cases quickly lead him to a city-wide crime wave and get him into more trouble than he could have possibly imagined.
Half Moon Investigations was a fun read. Of course, I'd figured out the culprit long before Fletcher did, but that really didn't detract from my enjoyment since Colfer throws in a couple of extra curve balls.
Rounding out the novel, reader Sean Patrick Reilly does a wonderful job with the voices, hitting the perfect combination between hard-boiled detective and precocious child.