Sunset of the Sabertooth
by Mary Pope Osborne
Jack and Annie travel back in time to the Ice Age where they encounter woolly mammoths, cave people, and a dangerous sabertooth tiger. The siblings must use their wits and courage to survive in this prehistoric world while searching for clues to help them on their magical tree house adventures. This installment focuses on themes of bravery, problem-solving, and learning about ancient history through exciting time-travel adventures.
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