"Seems to me that was strange behavior for the chauffeur. As a rule, drivers stick to their machines to the last. Who was the owner?"
"Why, it was Mr. Warren Hatch, the——"
"Mr. Hatch?" gasped Frank.
"Do you know him, sir?"
"Yes. Where have they taken him?"
"To some hospital. The officer yonder will tell you, I think."
On arriving at his hotel, Frank found a letter addressed to him. He tore it open and read as follows:
"The first and second blows have been struck!
"The Avenger."