From the creators of the New York Times bestseller Invisible Things, this entertaining exploration of invisible mysteries is a mind-tickling, STEM-friendly invitation to explore the unseen world.

The universe is full of Mysterious Things—lost things, forgotten things, things we don’t know, and even things we don’t know we don’t know! In fact, you might say the world contains more questions than answers! Questions like:

• What do dreams mean?
• What is at the bottom of the ocean?
• Where is that lost puzzle piece?

If you’re ready to begin unravelling these mysteries and more, grab your detective’s hat or slip into your lab coat and come along on an exciting journey to embrace the unknown.

“With short, intriguing pieces of text and fantastic artwork… this is great for sparking the imagination of readers to find out more about mysteries in this world.”

— School Library Journal

Andy J. Pizza is the New York Times–bestselling coauthor of Invisible Things, the talent behind the popular podcast Creative Pep Talk, and the illustrator of several books, including A Pizza with Everything on It and A Sundae with Everything on It. Learn more at andyjpizza.com.

Sophie Miller is the New York Times–bestselling coauthor of Invisible Things and a mixed-media artist originally from Yorkshire, England. She likes to write, walk, garden, and visit the library with her kids. Learn more at sophiemiller.co.

Andy loves the mysteries of the human brain and learning about the universe. Sophie loves reading mystery books and looking for nature’s clues. They live in Columbus, Ohio, along with their three curious kids and two dogs.