Curse of the Kumquat Treaty — John Keilman

Following up on the first volume of the Spies, Inc. series, this book finds the 5th-grade herobeing sought after byevery kid in school to help solve their urgent problems. Despite the risk of being expelled, he agrees to help Chester P. Hornswoggle, the nerdiest boy in school, find out if the most popular girl in school likes him. Immersing himself in his mission to unravel a mysterious crush, he once again turns to his adventure-book idol, Dash Danger, for inspiration as he attempts to foil treacherous villains and save the Kumquat Treaty. Readers are encouraged to grab a pencil and get in on the action, helping the hero to name his schoolyard mission, decipher cryptic text messages, go on eavesdropping missions, and make disguises good enough to fool even mothers."