CHAPTER XI.
THE “HERR PROFESSOR” AGAIN.

It was not part of Jack’s plan to apprise Muller of the identity of Mr. Johnson. He did not wish to act prematurely in any way till he had consulted Raynor and a plan of campaign had been worked out.

“That guy certainly won’t try any monkey-shines with me,” Muller assured Jack slangily, but with a sincere ring in his voice, and Jack knew he could trust him.

Then he sought out Bill, whom he found in the latter’s cabin writing letters.

“Well, Bill,” he began. “I’ve solved the mystery of Mr. Johnson.”

Bill’s writing was instantly forgotten.

“You mean that peppery chap?”

“The same person. He’s an old friend of yours. You were not mistaken when you said that you thought you recognized his voice.”

“The dickens you say?” Bill was all attention now. “And who is he?”

“Why,—as the nickel novels say,—none other than our old college chum, Herr Professor Radwig.”