Lark and Connor are ready for a sunny day at the splash pad when their halmoni (grandmother) gets a call from her friend Miss June.

Miss June's handmade quilt has been stolen right from her backyard--and on the day of the quilt show! Lark and Connor set aside their plans to help find the culprit. After scouring the crime scene, they gather their friends from the splash pad and head to the quilt show to interview suspects. Lark and Connor will have to follow the loose threads to discover who stole Miss June's quilt...and try to get it back before the show is over.