Join the world's greatest detective, Nate the Great, as he solves the mystery of the missing Earth Day robot in this long-running chapter book series that's a favorite for beginner readers!
WILL THIS CASE ROLL AWAY?
The Earth Day Fair is days away, but Nate's classroom project--a robot named Mr. Butler--has disappeared. Nate the Great and his dog, Sludge, take on the unusual case, and they are soon searching high and low in and around the school. Will Nate find the robot in time for the fair?
Perfect for Common Core, the Nate the Great chapter book series will encourage children to problem-solve and learn about STEM topics, using logical thinking to solve mysteries!

Andrew Sharmat, previously collaborated with his mother, Marjorie Weinman Sharmat, the creator of Nate the Great. Now Andrew continues solving mysteries with Nate and Sludge. Nate the Great and the Earth Day Robot is his first solo Nate the Great mystery.
 
Olga and Aleksey Ivanov are renowned children's book illustrators/authors and classically trained commercial artists. This talented husband-and-wife team immigrated to the United States in 2002 and found their home #hylandstudio in the Rocky Mountains, Colorado. 
In all, the two have illustrated over 100 children's books around the globe. Visit them online at www.ivanovillustration.com.