An American Girl Mystery unravels across time! Join Emma Dhillon in 2024 as she befriends Julie Albright through her 1977 journal and uncovers a mystery.

Ten-year-old Emma is excited to explore her new home of San Francisco, but making new friends is difficult. That is, until she meets Julie…. well, she discovers her journal from 1977 in a local thirft shop and quickly becomes enraptured with a mystery unfolding in Julie’s time.

Though half a century separates them, Emma and Julie are united by their shared home, their passion for the environment, and a missing blue guitar. As Julie investigates stolen artifacts and works to help animals after an oil spill, Emma sets to work uncovering Julie A.’s identity, documenting the whole process on video for her school project.

This new mystery graphic novel from American Girl and IDW weaves together two storylines, past and present, ending with a modern girl and a historical character joining forces to make a difference today.

Casey Gilly is a comics writer, horror fan, and mother to a young boy. The first two prepared her for the third. Her work includes Buffy the Last Vampire Slayer, My Little Pony: Generations, Star Wars Adventures, and My Little Pony: A New Generation. She lives in Portland, OR, where she spends most of her time raising her son to be a dashing YA villain, writing dashing YA villains, and bringing home cursed items from thrift stores.

Luna Valentine is a Polish digital illustrator, now living in the UK. Having previously worked on Is There Anybody Out There by Dara Ó Briain, Rockstar Detectives by Adam Hill and You Grow Girl by Dr. Zoe
Williams, they’ve now branched out into graphic novels. Their passion is creating fun, colorful characters that bring stories to life and empower children to embrace their education, creativity, imagination and
themselves. We’re all a little weird and unique, after all.