This high-tech kids’ book is really a gift for the grown-ups

McMullens—the children’s imprint of the McSweeney’s publishing empire—has just published a kids’ book that’s not quite like anything we’ve seen before.

Author and illustrator Jordan Crane has created a world where nothing’s quite what it appears to be—hence the book’s title, Keep Our Secrets. Each page features one or more secrets that magically appear when they’re exposed to some sort of heat source (very warm hands work quite well; a hair dryer’s even better). The technology is cool and kid-friendly. But that wouldn’t matter if the illustrations, and secrets, weren’t so well drawn, witty, and—the not-so-secret key to any great kids’ book—totally worth looking at again and again.

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This high-tech kids’ book is really a gift for the grown-ups