For Keycase Milne, frustration had piled upon frustration.
Since early evening he had maintained a watch upon the Presidential Suite. Near dinnertime - when he confidently expected the Duke and Duchess of Croydon to leave the hotel, as almost all visitors did - he had taken post on the ninth floor near the service stairs. From there he had a clear view of the entrance to the suite, with the advantage that he could avoid being observed himself by ducking quickly out of sight through the stairway door. He did this several times as elevators stopped and occupants of other rooms came and went, though on each occasion Keycase managed to catch a glimpse of them before his own departure. He also calculated, correctly, that at this time of day there would be little staff activity on the upper floors. In case of anything unforeseen, it was a simple matter to retreat to the eighth floor and, if necessary, his own room.
That part of his plan had worked. What had gone wrong was that through the entire evening the Duke and Duchess of Croydon had failed to leave their suite.
However, no room service dinner had been delivered, a fact which made Keycase linger hopefully.
Once, wondering if he had somehow missed the Croydons' departure, Keycase walked gingerly down the corridor and listened at the suite door. He could hear voices inside, including a woman's.
Later, his disappointment was increased by the arrival of visitors. They appeared to come in ones and twos and, after the first few, the doors to the Presidential Suite were left open. Soon after, room-service waiters appeared with trays of hors d'oeuvres, and a growing hum of conversation, mixed with the clink of ice and glasses, was audible in the corridor.
He was puzzled, later still, by the arrival of a broadshouldered youngish man whom Keycase judged to be an official of the hotel. The hotelman's face was set grimly, as were those of two other men with him. Keycase paused long enough for a careful look at all three and, at first glance, guessed the second and third to be policemen. Subsequently he reassured himself that the thought was the product of his own too active imagination.
The three more recent arrivals left first, followed a half hour or so later by the remainder of the party. Despite the heavy traffic in the later stages of the evening, Keycase was certain he had been unobserved, except possibly as just another hotel guest.
With departure of the last visitor, silence was complete in the ninth floor corridor. It was now close to eleven p.m. and obvious that nothing more would happen tonight. Keycase decided to wait another ten minutes, then leave.
His mood of optimism earlier in the day had changed to depression.
He was uncertain whether he could risk remaining in the hotel another twenty-four hours. He had already considered the idea of entering the suite during the night or early tomorrow morning, then dismissed it. The hazard was too great. If someone awakened, no conceivable excuse could justify Keycase's presence in the Presidential Suite. He had also been aware since yesterday that he would have to consider the movements of the Croydons' secretary and the Duchess's maid. The maid, he learned, had a room elsewhere in the hotel and had not been in evidence tonight. But the secretary lived in the suite and was one more person who might be awakened by a night intrusion. Also, the dogs which Keycase had seen the Duchess exercising were likely to raise an alarm.
He was faced, then, with the alternative of waiting another day or abandoning the attempt to reach the Duchess's jewels.
Then, as he was on the point of leaving, the Duke and Duchess of Croydon emerged, preceded by the Bedlington terriers.
Swiftly, Keycase melted into the service stairway. His heart began to pulse faster. At last, when he had abandoned hope, the opportunity he coveted had come.
It was not an uncomplicated opportunity. Obviously the Duke and Duchess would not be away for long. And somewhere in the suite was the male secretary. Where? In a separate room with the door closed? In bed already? He looked a Milquetoast type who might retire early.
Whatever the risk of an encounter, it had to be taken. Keycase knew that if he failed to act now, his nerves would not survive another day of waiting.
He heard elevator doors open, then close. Cautiously, he returned to the corridor. It was silent and empty. Walking quietly, he approached the Presidential Suite.
His specially made key turned easily, as it had this afternoon. He opened one of the double doors slightly, then gently released the spring pressure and removed the key. The lock made no noise. Nor did the door as he opened it slowly.
A hallway was immediately ahead, beyond it a larger room. To the right and left were two more doors, both closed. Through the one on the right he could hear what sounded like a radio, There was no one in sight. The lights in the suite were turned on.