Start gifting
Libro.fm for Business
Start a membership, get two free audiobooks
Almost ready!
In order to save audiobooks to your Wish List you must be signed in to your account.
Log in Create account
Shop the sale
In celebration of Independent Bookstore Day, shop our limited-time sale on bestselling audiobooks from April 22nd-28th. Don’t miss out—purchases support your local bookstore!
Shop nowThe Twenty-one Balloons
This audiobook uses AI narration.
We’re taking steps to make sure AI narration is transparent.
Learn moreA Newbery Medal Winner
Professor William Waterman Sherman intends to fly across the Pacific Ocean. But through a twist of fate, he lands on Krakatoa, and discovers a world of unimaginable wealth, eccentric inhabitants, and incredible balloon inventions. Winner of the 1948 Newbery Medal.
"William Pene du Bois combines his rich imagination, scientific tastes, and brilliant artistry to tell a story that has no age limit."—The Horn Book
William Pene du Bois (1916 - 1993) won the 1948 Newbery Medal for The Twenty-One Balloons and received two Caldecott Honors for his illustrations for Bear Party and Lion. He illustrated books by Rumer Godden, Charlotte Zolotow, and others.