Roswell Johnson Saves the World! (Roswell Johnson #1)

Eleven-year-old Roswell Johnson is obsessed with conspiracies about extraterrestrial life, an interest he inherited from his late father, who aptly named Roswell after the infamous UFO crash in Roswell, New Mexico. 

When Roswell is accidentally abducted by aliens, his biggest dream comes true--he learns that aliens are real! But when he discovers Earth is in grave danger, he must join forces with a team of quirky extraterrestrials, including two bickering Grays, a humorless Cyborg, a germophobic Mantis, an overly confident Furgarian, and an over achieving Pleiadean to save his planet from a tyrannical invasion.  But can Roswell restore his own faith in humanity and Earth in time to save the world?