Schumer shifted uneasily; then he laughed.

"Well, let it be so," said he; "half shares, and you pay for the trade and provisions; it's early to talk of dividing what we have not got. Still, as you wish it, I agree."

He spoke without enthusiasm. Then he rose up. They had been sitting on the weather side of the reef, with their backs to the lagoon and their faces to the sea; the wind had almost died away, and now as they turned they saw, away across the lagoon, a thin column of black smoke rising from the camping place through the almost windless air.

"It's the signal!" said Floyd.

"A ship!" cried Schumer.

He sheltered his eyes, and Floyd, doing the same, saw the figure of Isbel moving about near the fire. She was putting fresh brushwood on the flames, and even as they looked the smoke increased.

Schumer picked up the pearl that was still lying in the shell and put it in his pocket. He glanced at the heaps of shell still untouched. There was no time to cast all that back in the lagoon or hide the evidence of their work; it was necessary to get back at once, and, returning to the boat, which was beached on the sand, they shoved off, Floyd taking the sculls.

When they reached the beach, Isbel was there, and helped to run the boat up.

"A ship," said she. "Schooner, I think, away over there."

She pointed across the reef toward the outer sea.