The Spy Catchers of Maple Hill - Megan Frazer Blakemore

Hazel Kaplansky is a firm believer in the pursuit of knowledge and truth-and she also happens to love a good mystery. When suspicions swirl that a Russian spy has infiltrated her small town of Maple Hill, Vermont, amidst the fervor of Cold War era McCarthyism, Hazel knows it's up to her to find a suspect starting with Mr. Jones, the quietly suspicious grave digger. Plus she's found a perfect sleuthing partner in Samuel Butler, the new boy in school with a few secrets of his own. But as Hazel and Samuel piece together clues from the past and present, the truth is suddenly not what they expected, and what they find reveals more about themselves and the people of their cozy little town than they could ever have imagined."