Reproduction of the original: Dave Darrin on Mediterranean Service by H. Irving Hancock

This novel follows Dave Darrin and Dan Dalzell, two young US Naval officers, who are on a mission in the Mediterranean. The story unfolds as they are sitting in a Spanish vaudeville theater in Gibraltar. Suddenly, a fight breaks out, leading them on a chase after a thief who has robbed a man in a gray suit. The man in the gray suit turns out to be George Cushing, a member of the secret service of the American Department of State. Cushing reveals to Dave that the thief has stolen something of value to the United States government and decides to give the mission to retrieve it to Dave and Dan.

Dave, now a naval officer in the U.S. Navy, is sent on service in the Mediterranean following the close of World War I. With his friend Dan Dalzell, Dave encounters spies in Gibraltar and begins what may be his greatest case--unravelling the mystery that threatens to involve the United States in European intrigue!

Reproduction of the original: Dave Darrin on the Asiatic Station by H. Irving Hancock