

Mystery and adventure collide in this humorous and heartfelt multiverse adventure from beloved, award-winning authors Wendy Mass and Nora Raleigh Baskin. Twelve-year-old Piper’s life has always been unusual: her parents are clockmakers whose inventions are anything but ordinary, and she’s the only kid she knows with a robotic talking dog. But her life takes a turn for the truly bizarre when she discovers her parents are in jeopardy and the key to saving them is a book full of strange equations. When Raisa and Lev travel through the portal to Piper’s world, Raisa can finally prove that her mother’s multiverse project worked. Now, she just needs the book containing her mother’s equations to get back to her world…if only she can find it! As Raisa and Piper adventure to the bounds of the multiverse, they’ll need to discover their place in the world if they ever want to find their way back home.
Wendy Mass is the New York Times–bestselling author of The Candymakers series and many other novels for young readers, including the Schneider Family Book Award winner A Mango- Shaped Space, Jeremy Fink and the Meaning of Life (which was made into a feature film), Every Soul a Star, Pi in the Sky, the Twice Upon a Time series, and the Willow Falls series that began with 11 Birthdays. She and her family live in New Jersey.
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