Island X (Mission Alert)

Tom and Zilla need to investigate one of their classmates. His dad is a billionaire who's up to something shady on his private island. But can Tom and Zilla get close enough to uncover the plot? It's up to secret agents Tom and Zilla to save the day. Product details Age Range: 10 - 14 years Grade Level: 5 - 8 Lexile Measure: HL590L  Series: Mission Alert Paperback: 72 pages Publisher: Darby Creek TM; Reprint edition (November 1, 2018) Language: English ISBN-10: 1541526333 ISBN-13: 978-1541526334 Product Dimensions: 7.5 x 0.3 x 5.3 inches Shipping Weight: 2.6 ounces