Chasing Vermeer is a children's mystery novel. It was written by Elizabeth Balliett Klein under the pseudonym Blue Balliett. The book centers around two Chicago sixth graders, Calder Pillay and Petra Andalee, who come together through a series of unexplainable coincidences. When a famous Johannes Vermeer painting, A Lady Writing, is stolen, the two kids work together to solve the mystery that even the FBI cannot solve.