An American Girl Mystery unravels acrosstime! Join Emma in 2024 as she helps Juliesolve a mystery that began in 1977… Eleven-year-old Emma Devan can’t wait to exploreher new home of San Francisco, but she’s not surehow to make new friends. Then she discovers anold journal in a local thrift shop—and gets caughtup in a 50-year-old mystery! As Julie Albright investigates stolen artifacts andworks to help animals after a 1977 oil spill, Emmasets out to uncover Julie’s identity. Though half acentury separates them, Emma and Julie areunited by their shared home, passion for theenvironment, and a mysterious blue guitar.This new mystery graphic novel from American Girland IDW weaves together past and present to tellthe exciting story of two girls from different timesjoining forces to help their community/make abetter world.