Rosie and Kayo get involved in the mystery of a possible Van Gogh painting found in the storage room of a community theater, where their new friend Lyle gets a part in the play for Bone Breath, Rosie's dog. Rosie and Kayo get jobs in the props department in the theater; Lyle has a small part in the play. Rosie, Kayo, and Lyle get a little closer to the mystery than what they intend.