Ken Holt is the son of a world-famous foreign correspondent. With his friend, Sandy Allen, he travels around the world solving various mysteries.
"The Mystery of the Iron Box" begins innocently enough as Ken's father, Richard Holt comes to stay with the Allen's for the Christmas holiday. Naturally he brings gifts, one of which is for Mom Allen, an ornate iron box. This is where the mystery originates. Strange unexplained events occur at the Allen and Holt residences. There are prowlers who may be connected to Mr. Holt's investigation of the counterfeiting of ten dollar bills.
When Ken and Sandy bring the iron box to Sam Morris's jewelry store in Brentwood for a minor repair, the mystery deepens. A fire is set there and it becomes apparent that someone wants that box, but why ? How is the enigmatic Amos Barrack involved ?
