In a book with two front covers, two spines, and a Z-shaped binding that links the sides of the story, a dual tale of two intrepid travelers follows their respective flying and climbing adventures toward each other at the book's center.
- Genre: Juvenile Fiction
- Subgenre: Action + Adventure / General, Imagination + Play, Transportation / Aviation
- Publisher: McSweeneys Books
- Language: English
- Format: hardcover
- Release Date: November 15, 2012
- Date Published: November 15, 2012
- Author: Brian McMullen, Jason Jagel