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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

When Charlie's classmate Anthem mysteriously disappears after bringing a supposed space rock to show-and-tell, the Whiz Kids trace his steps to his eerily empty

When sixth-grade mathematical genius Charlie Lewis is recruited to recover moon rocks taken from NASA's vaults, the Whiz Kids enter a paper airplane contest hos

Charlie Lewis goes on a roller coaster ride of risk, math, and gaming in this middle grade novel that parallels the New York Times bestselling Bringing Down the

The bestselling author of The Accidental Billionaires and The 37th Parallel tells the fascinating Jurassic Park­-like story of the genetic restoration of an ex