Oh, no! Jet's pet Sunspot is missing! How on Earth will he ever find him? Find out in this Level 2 Ready-to-Read based on a popular episode of PBS's hit show Ready Jet Go!When Jet's pet Sunspot goes missing, Jet and his Earth friends use the North Star to navigate their way to find him. This Level 2 Ready-to-Read includes bonus back matter content with lots of fun facts about the constellations and how to use the North Star as a guide. © Copyright 2019 Jet Propulsion, LLC. Ready Jet Go! is a registered trademark of Jet Propulsion, LLC.