The Saint is visiting an archaeological dig in Greece, where his friend, Professor Grant, has unearthed a valuable statue. The workers are catered for by local inn-keeper Stavros and his pretty daughter Sophia. Aristides, Sophia's cousin, then arrives. He is a local boy who has not made good in Athens, where he has become a petty crook. The Saint warns Grant to keep the statue safely locked up, which he does, but Sophia disappears and a ransom note is delivered. Aristides is the obvious suspect but he swears that he is innocent.