“We had arranged to stop at this hotel just in case Keene tried to follow us. I was sure that he would try. He wants to know where your father is. But I am equally certain that we have eluded him.” “I wouldn’t be too sure of that, Mr. Dietz,” Biff said to himself. Aloud, he said, “And how can you be sure?” “I go now to make certain. I will look around most carefully. If I do not see Keene, then it will be safe for us to take you to your father. Specks, here, will stay with you to protect you.” Biff wasn’t fooled. He knew that Specks was being left behind to keep him from escaping. From the wily smile on Dietz’s face, Biff knew that whatever the plan was, Dietz thought it was moving ahead smoothly. Biff smothered a crazy desire to laugh. Dietz’s plan would be working out successfully if the real Derek were here. One thing was very clear to Biff as Specks locked the door behind Dietz. These men did not know where Derek’s father was. They were stalling. The whole elaborate story Dietz had woven showed that. His plan must have been to get Uncle Charlie to lead him to Derek’s father. Dietz had figured he could do this if he could get to Derek first. When Charles Keene failed to meet Derek, he would have to go to Zook and explain. Dietz probably had planted a man at the airport to spot and follow Keene. “And this all started,” Biff said to himself, stretching out in a comfortable chair, “when I wanted to play a practical joke on my uncle by having him think Derek was I.” Then it dawned on Biff. He couldn’t have played it the way Uncle Charlie had wanted any better if Uncle Charlie himself had planned the switch in identities. It looked to Biff now as if Uncle Charlie didn’t know where Derek’s father was, either. Parts of the whole puzzling experience had fallen into place. But there were more pieces still to be fitted together. Uncle Charlie would know the answers. But where was he? Nearly half an hour had passed since Dietz had left the room. Specks, sprawled in a chair, still watched Biff closely. Idly, Biff rose and strolled across the room and sauntered out on the balcony. He could feel Specks’ eyes following him, but the man made no move. On the balcony, Biff understood Specks’ inactivity. There was little chance of getting out of the room this way. The drop to the water below was