“By whom?” asked Wise.

“By the kidnapper——”

“Who also is the——”

“Blackmailer!” said Zizi, in an awestruck voice. “Oh, Penny Wise, how you do jump at a solution! You just clear all intervening obstacles, and land on the truth!”

“I’m far from having landed,” said Wise, ruefully; “that’s all theory,—with very little fact to back it up.”

“Well, these beads are facts,” Zizi said. “They’re two more, Penny, from the same string that you already have a few from. You see, Mr Granniss,” she said, turning to Rod, “Mr Wise discovered a few of these beads in the kitchen this morning, and a little later, I found that the cook had picked up two in the kitchen the day after Miss Betty’s disappearance. The string of them that she wore was not a long one, but still there were at least a dozen or so more than we have found. Where are they?” She had turned again to Wise as she put this question.

“I know the beads well,” Granniss said, “but how did they get in the kitchen?”

“It may be a simple matter,” Wise responded. “Perhaps the string broke when she was out there getting the lemonade. I understand all the servants were away.”

“But, Penny,” Zizi reminded him, “in that case the other beads would be about, somewhere. She would have picked them up and put them in a box or something.”

“Yes, she would,” Rodney agreed, “for Betty loved that necklace. She loved anything yellow. You’ve heard about the yellow pillow?”