Tonya Mezrich: 2 books

Charlie and the Whiz Kids discover a prehistoric mammoth tusk and stumble right into the nefarious clutches of an eccentric billionaire in this hilarious third novel of the Charlie Numbers series. Charlie Numbers and his gang of Whiz Kids—along with a few new allies—are on another mission:...

Charlie is recruited to use his mathematical prowess to discover what happened to a box of stolen moon rocks in this follow up to Bringing Down the Mouse. The Kid: Charlie Lewis, a.k.a. Numbers. The smartest kids in sixth grade. Charlie sees the world as a series of math problems—ones that...