“Oh, dear!” worried Jessie. “It is my fault. I should not have let her go out alone that time, Amy.”

“She said she wanted to see her island, I remember,” admitted her chum, with some gravity. “And this island is a pretty big place, and it is growing dark.”

“She could not get into any trouble if she stayed on Hackle Island,” declared Darry. “What a kid!”

“And she certainly couldn’t have got off it,” suggested Burd.

“We must look around for her,” said Jessie, with conviction. “Don’t tell Momsy. She will worry. She thinks I have had my eye on the child all the time.”

“You certainly would have what they call a roving eye if you managed to keep it on Henrietta,” giggled Burd Alling. “She darts about like a swallow.”

Jessie felt it to be no joking matter. The four young people separated and went in different directions to hunt for the missing child. Station, or Hackle, Island at this end was mostly sand dunes or open flats. A little sparse grass grew in bunches, and there were clumps of beach plum bushes. Towards the golf course the land was higher and there real lawn and trees of some size were growing.

The low sand dunes stretched in gray windrows right across the island. Jessie tried to think what might have first attracted Henrietta at this end of the island. She did not believe that she would go far from the bungalow, although Amy wanted to start at once for the hotel. That was the object that attracted her first of all.

Jessie ran toward the far side of the island. It was growing dark and everything on both sea and shore looked gray and misty. The seabirds swept overhead and whistled mournfully. Jessie shouted Henrietta’s name as she ran.

But she began to labor up and down the sand dunes with difficulty. It frightened Jessie Norwood very much whenever Henrietta got into mischief or into danger. No knowing what harm might come to her on this lonely part of Station Island.