"We must be extra careful for a time, till you are sure the trouble is past," he said, with a smile, but he felt the weight on his spirits as she did.

Physically, however, their long tramp did them good, and they returned home with famous appetites.

"I wonder if he's back yet," said The Girl, as they were paddling to the ship. There was no doubt as to where her fears centred.

"I don't see the raft. We'll see better from the deck," and when they had climbed aboard they looked at once towards the spit and saw the mate's raft still lying there. He was not back yet.

They ate, and rested, and until the darkness swallowed the spit, the raft still lay there.

"He's staying late," said Wulf. "Maybe he's broached a keg and taken too much. It would be what I would expect from him under the circumstances."

He patrolled the deck, after she had gone to bed, listening for the sound of the mate's oar. But he heard nothing, and at last made up his mind that the fellow had probably waited too late and had made himself snug out there for the night, though, for himself, the idea would not have commended itself. There was little danger, however, of his coming across in the dark, so he went down and slept soundly at the foot of the companion-steps.

All the next day they were on the look-out for him, but he did not come.

Wulf had told her of his idea that he had probably found means of passing the night out there, in which case he would no doubt put in another long day rooting for treasure. So that it was not until night had fallen again, and the raft still lay waiting on the spit, that he decided in his own mind that something was wrong.

"I shall go across to the pile in the morning to find out," he said, as they sat by the fire.