“Have Danny here with the touring car as soon as possible,” he directed, referring to his chauffeur. “You had better get ready to accompany me.”

“You are going——”

“To the residence, office, or whatever the quarters may be, of the party who telephoned,” Nick interrupted. “The circumstances are decidedly ominous. We’ll find out why the milk is in the coconut.”

“I’m with you,” Chick declared, hastening to carry out the instructions given him.

Ten minutes brought the report Nick was awaiting. He then hurried through the hall, seizing his hat and overcoat, and rejoined Chick in the touring car, which had arrived at the curbing only a moment before.

“Great guns!” Chick exclaimed, upon hearing the terse directions Nick had given to Danny. “The Clayton residence, eh? Not that of Chester Clayton, our old friend and former client?”

“Yes, the same,” said Nick, now looking ominously grim and determined. “He no longer is running the Hotel Westgate, however, as when we twice served him so successfully. He now is in the banking and brokerage business with his wealthy father-in-law. The firm was established soon after his marriage with Clara Langham.”

“I know about that,” Chick replied. “But can Clayton again be up against trouble? What more have you learned?”

“Only that the phone call came from his residence,” Nick rejoined. “It is one of the most costly in Riverside Drive. Something is wrong there. The exchange operator stated again that the receiver still is off the telephone hook.”

“By Jove, that does appear decidedly ominous, Nick, in view of what you heard—a sound like the crack of a revolver.”