Cam Jansen and the Mystery of the UFO  - David A. Adler, Susanna Natti

In Cam Jansen and the Mystery of the U.F.O., Jennifer "The Camera" Jones's best friend, Eric Shelton, is looking for an awesome subject to photograph for the first annual Junior News Photography Contest. He thinks he has a great shot when Cam rescues a kitten from a tree, but something even bigger happens: a series of floating lights fill the sky, and the onlookers are quick to label them the product of a U.F.O. The ever-curious Cam Jansen is on the case in a heartbeat.

It's a simple and short mystery from David A. Adler, the second in the popular Cam Jansen series. There's nothing especially fascinating here, and it's not really the kind of mystery that invites its reader to unravel the enigma along with the fictional sleuths... but it's a good enough story for the target audience and a great way to introduce young children to the mystery genre.