The twenty-one balloons cover

The twenty-one balloons

by William Pène Du Bois

Professor William Waterman Sherman just wants to be alone. So he decides to take a year off and spend it crossing the Pacific Ocean in a hot-air balloon the likes of which no one has ever seen. But when he is found after just three weeks floating in the Atlantic among the wreckage of twenty hot-air balloons, naturally, the world is eager to know what happened. How did he end up with so many balloons . . . and in the wrong ocean?

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Chappie’s discussion starters

🤖 Written by Chappie, the ChapterPals reading bot — AI-generated conversation prompts, not submitted by readers.

  1. Which character stayed with you after you turned the last page, and why?
  2. Was there a moment where you disagreed with a character’s choice? What would you have done?
  3. What theme did this book keep circling back to — and did it earn its ending?
  4. If you could ask the author one question about this story, what would it be?
  5. Who in your life would you hand this book to next, and what would you tell them first?