Books like The Twenty-One Balloons

Professor William Waterman Sherman intends to fly across the Pacific Ocean. But through a twist of fate, he lands on the secret island of Krakatoa where he discovers a world of unimaginable wealth, eccentric inhabitants, and incredible balloon inventions. Winner of the 1948 Newbery Medal, this classic fantasy-adventure is a joy for all ages.

Liked The Twenty-One Balloons by William Pène du Bois? Here's what readers who loved it picked up next.

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Henry Huggins by Beverly Cleary (1950) · 3.97★
Mr. Popper's Penguins by Richard Atwater (1938) · 3.95★
My Father's Dragon by Ruth Stiles Gannett (1948) · 4.09★
The Phantom Tollbooth by Norton Juster (1961) · 4.22★
The Bronze Bow by Elizabeth George Speare (1961) · 3.93★
A Wrinkle in Time by Madeleine L'Engle (1962) · 4.04★
Mrs. Frisby and the Rats of NIMH by Robert C. O'Brien (1971) · 4.13★
The Trumpet of the Swan by E.B. White (1970) · 4.06★
Caddie Woodlawn by Carol Ryrie Brink (1935) · 3.99★