CHAPTER X

THE MYSTERIOUS VISITOR The head-waiter in the restaurant to which Hetherwick and Rhona repaired every Sunday immediately upon her arrival now knew these two well by sight, and forming his own conclusions about them, always reserved for them a table in a quiet and secluded corner. Hither they now proceeded, and had scarcely taken their accustomed seats before Rhona plunged into her story. "I expect you want to know what it's all about, so I won't keep you waiting," she said. "It was on Friday--Friday morning--that…