The Secret Explorers and the Comet Collision

The Magic School Bus Inside the Earth

Joanna Cole

George's Cosmic Treasure Hunt

Lucy Hawking

The Magic School Bus Lost in the Solar System

Joanna Cole

Explorer Academy: The Nebula Secret

Trudi Trueit

Zero G

Dan Wells

Late Lunch with Llamas

Mary Pope Osborne

Meet the Planets

Caryl Hart

Treasure Hunters

James Patterson

Quest for the Hidden City

George Mann

Dragon Planet

Dan Wells

Rebels with a Cause

James Patterson

Sam Samurai

Jon Scieszka