Hilary Craven is about to end her life when Jessop, a British agent, asks her help in finding several of the world's leading scientists who have recently vanished. Assuming the identity of a physicist's wife, she infiltrates a secret Moroccan laboratory and discovers a global conspiracy. The information she has could cost her her life, just when she has realized how much she wants to live.

Originally published: 1954. This title was previously published as So many steps to death.