This is one of those books that does exactly what great children's literature should: it tells a true story so astonishing you can barely believe it, while teaching kids about a dark chapter of American history in a way they won't forget.

The premise alone—a man mailing himself in a wooden crate for 27 hours to escape slavery—is the kind of thing that sticks in a kid's brain forever. Ellen Levine doesn't shy away from the hard parts: families ripped apart, dreams deferred, the suffocating reality of that box. But she also doesn't wallow. The focus stays on Henry's determination and ingenuity.

This isn't a book you read casually before bed. It's the kind you read together, with time built in for questions and feelings. Common Sense Media is right that it may disturb younger readers—and it should. That's the point. But disturbing isn't the same as inappropriate. For kids ready to learn about slavery beyond textbook abstractions, this is powerful stuff.

The 4.9 Amazon rating tells you parents recognize its value. Award-winning creative team delivers both in storytelling and illustration. If your kid is studying the Underground Railroad or you want to build historical empathy, this belongs on your shelf.