Each year Thomas goes an a pilgrimage but he has more difficulty to complete it, but then he is offered a footbath that appears to contain a miracle drug. Wouldn't this make a huge seller during Expo 58 in Brussels... .
A strange man arrives in Belder on horseback, and introduces himself as Captain Zeppos. Initially, he is met with suspicion and jealousy, but he soon befriends a local, Ben Kurrel. It becomes apparent that Zeppos had a motive to come to Belder: when in Greece a stranger had made him an offer on a piece of land he had inherited near the town. Ben Kurrel and his friend Rita Mees help him investigate the mystery.
