"How do you make that out, Bonnie?" Strawn asked, his grin wiped away.

"Try to remember how Sprague looked when you first got here," Dundee suggested. "I saw him twenty minutes after you did, but—he was wearing an immaculate stiff collar, and there were still traces of talcum powder over a close shave! And you will remember that he said he had made a half hour's trip by bus, and had walked the quarter of a mile from the bus stop on Sheridan Road to this house. It was a mighty hot afternoon, chief!"

"Not conclusive," Strawn growled.

"Then here's another straw to add to the weight of my conclusion," Dundee went on unshaken. "You remember that Janet Raymond was on the front porch watching for Sprague, while the 'death hand of bridge' was being played?... Oh, she tried to protect him.... Wait, I'll read you the notes I made when I was questioning her. I looked them up while I was waiting for you.... Here! I had said to Miss Raymond: 'You observed Mr. Sprague toiling down the rutty road, hot and weary, but romantic in the sunset?' And she answered, stammering: 'I—I wasn't looking that way....' And I knew she was lying, knew that she had been taken completely by surprise when Sprague suddenly appeared from the rear of the house! What's more, she betrayed herself and him by admitting that she was surprised. Then—because the girl is undoubtedly in love with Sprague and was mortally afraid he had killed Nita Selim, she tried frantically to throw suspicion on Lydia Carr, by telling how Lydia had failed to answer Mrs. Dunlap's first ring—Good Lord! Wait a minute! I want to think!" he interrupted himself to exclaim.

After a full minute, while he had stood very still, with his fingers pressed against his closed eyes, Dundee began slowly:

"I believe that's it.... Listen, boys!" He turned to the two plainclothesmen, urgent pleading in his voice. "Would you both take your oath that there was no bag—say a small Gladstone overnight bag—anywhere in these rooms when you searched them this evening?"

The two detectives glanced at each other, their faces reddening. It was Harmon, the older of the pair, who swallowed hard before answering:

"We'd been told to look for a man hiding, and for a gun—" Then he squared his shoulders as if to receive the blame like a man. "Yes, sir! There was a little black grip on the closet shelf. I went through it myself, but there wasn't no gun in it. Just a pair of pajamas and a couple of shirts, one of 'em dirty, some socks and collars and a shaving-kit—"

Dundee drew a deep breath, and clapped the red-faced detective on the back in high good humor.

"There simply had to be a bag somewhere!" he laughed.