For Clara Darden, Grand Central Terminal is the stepping stone to her future. It is 1928, and she is teaching at the lauded Grand Central School of Art. But Clara and her bohemian friends have no idea that they'll soon be blindsided by the looming Great Depression. Nearly 50 years later, the terminal has declined almost as sharply as Virginia Clay's life. Recently divorced, Virginia has just accepted a job in the information booth to support herself and her college-age daughter. But when Virginia discovers a striking watercolor hidden under the dust, she embarks on a quest to find the artist, drawing her deep into the mystery of Clara Darden, the famed 1920s illustrator who disappeared from history in 1931.