Eustace Wyatt

An American ballistics expert in Turkey finds himself targeted by German agents. Safe passage home by ship is arranged for him, but he soon discovers that his pursuers are also on board.

A scientist who has found a way to prolong life (he is 120 years old) finds himself in a dilemma: he has fallen in love, and he has also discovered that if he doesn't get new glands, he will die.