The starting gun cracked and the runners were off on their short grind. Ladd leaped into the lead and rapidly distanced the field, his legs twinkling under him almost faster than the eye could follow. He was fully twenty yards in the lead when his speed suddenly lessened and the balance of the runners closed up the gap he had opened. His lead was too great for them, and he was still a good ten yards in the lead when he crossed the tape. The official time was posted as eight and nine-tenths seconds. "Another thirty yards and he would have been beaten," said Carnes as he lowered his glasses. "That is the way he has won all of his races," replied the doctor. "He piles up a huge lead at first and then loses a good deal at the finish. His speed doesn't hold up. Never mind that, though, it is only an additional point in my favor. Did you notice his jaws just before the gun went?" "They seemed to clench and then he swallowed, but most of them did some thing like that." "Watch him carefully for the next heat and see if he puts anything into his mouth. That is the important thing." Dr. Bird sank into a brown study and paid no attention to the next few events, but he came to attention promptly when the final heat of the hundred yard dash was called. With his glasses he watched Ladd closely as the runner trotted up to the starting line. "There, Carnes!" he cried suddenly. "Did you see?" "I saw him wipe his mouth," said Carnes doubtfully. "All right, now watch his jaws just before the gun goes." * * * * * The final heat was a duplicate of the first preliminary. Ladd took an early lead which he held for three-fourths of the distance to the tape, then his pace slackened and he finished only a bare ten yards ahead of the next runner. The time tied his previous world's record of eight and four-fifths seconds. "He crunched and swallowed all right, Doctor," said Carnes. "That is all I wanted to be sure of. Now Carnes, here is something for you to do. Get hold of the United States Commissioner and get a John Doe warrant and go back to the hotel with it and wait for me. I may phone you at any minute and I may not. If I don't, wait in your room until you hear from me. Don't leave it for a minute." "Where are you going, Doctor?" "I'm going down and congratulate Mr. Ladd. An old track man like me can't let such an opportunity pass." "I don't know what this is all about, Doctor," replied Carnes, "but I know you well enough to obey orders and to keep my mouth shut until it is my turn to speak."