Say goodbye to boring downtime and hello to Puzzlooies! These innovative books are packed with fun, each featuring a zany adventures peppered with eclectic puzzles. To reach the end, kids have to "solve the story" and save the day!

In Oliver and the Infinite Unknown, Oliver is used to being in his twin sister's shadow. To everyone else, Monica makes incredible inventions. But to Oliver, she's just stealing his favorite things for more outrageous experiments. Then one day, when Monica disappears into one of her own mechanisms, it's Oliver who has to think creatively as he navigates the past . . . and the future.

Solve the puzzles inside to read on and see if Oliver can save his sister from disappearing forever, or if they're both doomed to another dimension.