How did Davos end up with a knife in his back? The murder happened behind the "silver curtain" of spray from a fountain. He was alone with Jerry Winton in a dead end alley, but Winton didn't do it. Can Col. March unravel the mystery?
A shady businessman collapses on an oceanside jetty, the apparent victim of a heart attack, but a vacationing March discovers blood and a needle near the body.