Books with title A Mammoth Mix-Up

Entering the local science fair, Brian and his little sister, Penny, are embroiled in a mystery involving a shady scientist, a dinosaur hoax, and a missing mammoth tusk, and Brian's friend Mookie comes to the rescue with her fingerprinting kit.

Ellie! She's the first mammoth Manny has seen in years. He's overjoyed at the sight of her -- but there's a catch. Ellie is convinced she's a small, tree-dwelling marsupial. Join Manny on a hilarious adventure as he tries to convince this mixed-up mammoth that they are meant for each other.

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