Charlie Numb3rs and the woolly mammoth

"Charlie Numbers and his gang of Whiz Kids--along with a few new allies--are on another mission: this time, to uncover the truth behind the mysterious mammoth tusk they found buried in the Boston Public Gardens. Their hunch? Blake Headstrom, eccentric billionaire, philanthropist, and collector...

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Bibliographic Details
Main Author: Mezrich, Ben
Format: BOOK
Published: Simon & Schuster Books for Young Readers 2019
Series:Charlie Numbers adventures