The Mystery of the Hellenistic Hoard — Elizabeth Arthur

When a magnificent collection of Greek antiquities is brazenly stolen from a museum in Santa Barbara, The Three Investigators end up on the case. The Greek hoard was originally discovered by archeologist Godwin Cuthbert Stonebridge, and when he becomes the chief suspect in the theft, Jupiter, Pete, Bob, and Mallory know the police are on the wrong track. With help from both an IT expert who shows them video of the theft and their old friend Chris Markos, now back in Greece on the island of Naxos, they zero in on some likely suspects - at least until the moment they find themselves locked in a lighthouse, with no way out!