“Well,” Sim stated firmly, “I’ll feel better when that man from New York gets here. I’ll bet he knows something.”

The others had nothing to say to that, and they all went indoors for luncheon.

The meal was nearly finished when there was a knock at the front door. Bells in seashore cottages never seem to ring. They may at the beginning of the season, but almost always, before it ends, there appears over the push button a little note stating: “Please knock.”

Now, in answer to that invitation, a knock sounded.

“I’ll go,” said Ida, who had just brought in the dessert.

The three girls glanced eagerly at one another.

Was it Serge?

But in another moment they knew it was not, for they heard the murmuring of a woman’s voice talking to the maid. Presently Ida came back, a frightened look on her face, to announce:

“It’s a policewoman.”

“A policewoman!” exclaimed Mrs. Landry. “Are you sure, Ida?”