The Puzzle of the Missing Panda is the second book in Elizabeth Singer Hunt's popular Jack Stalwart international mystery series for young readers. The ten-year-old protagonist, Jack Stalwart, is a secret agent for the Global Protection Force who travels the world seeking his missing brother. In this installment, Jack's mission takes him to China to solve the perplexing case of a missing baby panda. The novel is a fast-paced blend of action, geography, and cultural detail, challenging Jack to use his wits and specialized skills in a foreign setting. The series is designed to be both thrilling and educational, introducing young readers to global landmarks and cultures while they follow an exciting, high-stakes adventure.