Keeper of the Lost Cities #4: Neverseen Thomas King In the fourth installment of

In the fourth installment of the New York Times bestselling Charlie Thorne series—which #1 New York Times bestselling author Chris Grabenstein called “a real page-burner”—Charlie searches for Isaac Newton's secret treasure across Europe and Australia

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New challenges

CRITICALLY ACCLAIMED: First published in hardcover with resounding response from fans and media alike

Keeper of the Lost Cities #4: Neverseen Thomas King In the fourth installment ofA New York Times bestselling series A USA TODAY bestselling series A California Young Reader Medalwinning series Sophie battles the rebelsand recovers dark memories from her pastin this jaw dropping fourth book in the bestselling Keeper of the Lost Cities series. Sophie Foster is on the runbut at least shes not alone. Her closest friends from the Lost Cities have gone with her to join the Black Swan. They still have doubts about the shadowy