The Secret Service Bureau receives word that a celebrated diamond has been smuggled among others, into the country by a notorious character posing as a nobleman. The information that he was carrying the gem in a hollow cane arrives too late to enable the officials to capture him at the pier, and upon the suspected man being searched shortly afterwards at his hotel, no sign of the jewel can be found. The men operatives are baffled, but a bright young woman with natural detective ability traces out the mystery, locates the jewels in the steam radiator, compels the smuggler to confess, and causes his arrest.
