Then the detective made a close examination, and made still another discovery—a name in one corner of the rumpled handkerchief.
The keen eyes of the detective gleamed with a satisfied light.
"What have you discovered, Dyke?"
"A clew."
"To what?"
"To the most infamous crime of the century. This handkerchief has the name of its owner stamped plainly in the corner."
"Well?"
"Arnold Nicholson."
"What?"
"That is the name on this bit of linen, which shows that it was once the property of the murdered express messenger. Of course you have heard of the crime on the Central?"