The Case of the Burnt Barn by Arthur Morrison

Everard Myatt -- or Catherton Hunt -- was lost again. Martin Hewitt had been wholly successful, for he had recovered Mr. Bell's missing bonds; but the police caught neither of the conspirators. Investigation at Henning's lodgings showed that careful preparations must have been made for an immediate flight if it should become necessary, and the flight had taken place. The man in the hospital, who had been knocked down in carrying from one to the other the extraordinary message that Hewitt deciphered, remained insensible for a few days, and could not be questioned till some time later still. Then he professed to have forgotten all about the message on which he was going when he met his accident, and the medical men in attendance informed the police that it was quite possible that the fellow's statement was true.

He said that he _did_ carry messages sometimes, when he could get a job, but he could remember nothing of the message of the key, nor of who had sent him, nor where he was to go. Nevertheless, the police, although they professed to accept his statement, kept a wary eye on him after his discharge from the hospital, for they had a very great suspicion that he knew more than he chose to tell. But nothing more was heard of the accomplices till another case of Martin Hewitt's brought the news, and that in a manner strange enough.