Chapter Book · Ages 8–12 · 1947
The 21 Balloons
A professor's flight goes awry, leading to a mysterious island of wealth and inventions.
192 pages· 32,795 words· Est. 4.5 hour read
4.0/5 Goodreads · 26,317 ratings
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Paperback
Summary: Professor William Waterman Sherman's Pacific flight takes an unexpected turn, landing him on Krakatoa. There, he uncovers a hidden world brimming with unimaginable riches, quirky residents, and astonishing balloon inventions. As he navigates this peculiar island, questions arise: What secrets lie beneath its surface, and how will he ever return home? This adventure promises a blend of fantasy and discovery, challenging Sherman to rethink his journey and its true purpose. Will he embrace the wonders of Krakatoa or find a way back to the skies?





