about two o'clock in the morning
`` I think I will pay you a visit to-night . '' The boys were so tired from their day 's adventures , and their travel that they did not need a bit of paregoric to make them sleep , as Nat expressed it , while he was undressing . They left the connecting doors open between their rooms , and , after putting their money and valuables under their pillows , soon fell into deep slumbers . It was about two o'clock in the morning when a dark figure stole along the corridor and came to a halt outside the door leading to Jack 's room . `` Does n't make much difference which one I go in , I s ` pose , '' was a whispered comment from the man , who was the same that had ridden up with the boys in the elevator . There was a slight clicking about the lock . Then something snapped .