"Certainly. I am sure there will be no objection to your presence, Mr. Carnes," replied the cashier as he led the way to his office. * * * * * A few minutes later Detective-Captain Sturtevant of the Chicago police was announced. He acknowledged the introductions gruffly and got down to business at once. "What were the circumstances of the robbery?" he asked. Winston told his story, Trier and the guard confirming it. "Pretty thin!" snorted the detective when they had finished. He whirled suddenly on Winston. "Where did you hide the loot?" he thundered. "Why--uh--er--what do you mean?" gulped the teller. "Just what I said," replied the detective. "Where did you hide the loot?" "I didn't hide it anywhere," said the teller. "It was stolen." "You had better think up a better one," sneered Sturtevant. "If you think that you can make me believe that that money was stolen from you in broad daylight with two men in plain sight of you who didn't see it, you might just as well get over it. I know that you have some hiding place where you have slipped the stuff and the quicker you come clean and spill it, the better it will be for you. Where did you hide it?" "I didn't hide it!" cried the teller, his voice trembling. "Mr. Trier can tell you that I didn't touch it from the time I laid it down until I turned back." "That's right," replied the paymaster. "He turned his back on me for a moment, and when he turned back, it was gone." "So you're in on it too, are you?" said Sturtevant. "What do you mean?" demanded the paymaster hotly. "Oh nothing, nothing at all," replied the detective. "Of course Winston didn't touch it and it disappeared and you never saw it go, although you were within three feet of it all the time. Did _you_ see anything?" he demanded of the guard. "Nothing that I am sure of," answered the guard. "I thought that a shadow passed in front of me for an instant, but when I looked again, it was gone." * * * * * Dr. Bird sat forward suddenly. "What did this shadow look like?" he asked. "It wasn't exactly a shadow," said the guard. "It was as if a person had passed suddenly before me so quickly that I couldn't see him. I seemed to feel that there was someone there, but I didn't rightly _see_ anything." "Did you notice anything of the sort?" demanded the doctor of Trier. "I don't know," replied Trier thoughtfully. "Now that Williams has mentioned it, I did seem to feel a breath of air or a motion as though something had passed in front of me. I didn't think of it at the time." "Was this shadow opaque enough to even momentarily obscure your vision?" went on the doctor. "Not that I am conscious of. It was just a breath of air such as a person might cause by passing very rapidly." "What made you ask Trier if he had the money when you turned around?" asked the doctor of Winston.