Jon Scieszka 
SPHDZ Book #2! [EPUB ebook] 

The campaign is going well. The SPHDZ word is getting out. 1000’s of kids have signed up to say they are SPHDZ. But things haven’t gotten any easier for Michael K. The SPHDZ are still trying to blend in to our Earth culture, but not very successfully. They’re still mixing up Thanksgiving, cartoon plots, holidays, and commercials. This makes it especially hard for Michael K. to both hide the SPHDZ from Agent Umber and accomplish the SPHDZ Mission. He’s forced to enlist the help of fellow fifth graders, Venus and TJ. When they (Michael K. and the SPHDZ) are given the assignment to write and perform the school play, Umber thinks he’s closing in on the aliens…the kindergartners playing the turkeys.