Gabe's happily headed back to Nerd Camp--but can he handle a cool-kid invasion? For Gabe, the equation for summer bliss equals six glorious weeks of rigorous learning immersion at the Summer Center for Gifted Enrichment--aka, Nerd Camp. Last year was amazing, and this summer will be even better. At least, that's what Gabe thinks...until a new variable is introduced. Zack, Gabe's cool stepbrother, was supposed to attend a camp...