They managed to find a broken spar, cast up by the waves, and by putting on it some boards, which they turned over to find the dry side, they evolved a comfortable seat.
"Oh, isn't this just lovely!" exclaimed Betty, as she gazed out over the bay, now glistening beneath the sun, which had come out from behind the storm clouds.
"It is perfect," agreed Amy.
Mollie was idly digging in the sand behind the spar. She used a shell, and had scooped out quite a hole. Suddenly the shell scraped on something with a shrill sound.
"Oh, don't!" begged Grace. "You set my teeth on edge! What is it, Mollie?"
Mollie did not answer at once. She was digging in the sand more quickly now. Again the shell scraped on some metal.
"Oh, Mollie!" objected Grace again, putting her hands over her ears. "What is it?"
"I—I think I've found something," replied Mollie in a low voice. "Look, girls, it's some sort of box."
They leaned over her. Her shell had scraped away the wet sand from the top of a square piece of metal. Mollie tapped it.
"It—it sounds hollow!" she whispered.