"Now, father," she said, "Alec is doing just what he ought to do, and you ought to be the last person in the world to discourage him. He's going to find out the truth even if he doesn't find the oysters he hopes to, and that's worth a lot."

"Well, all he finds out won't begin to make up for the money he'll lose while he's finding it out," said the shipper dogmatically. "If there had really been anything to find out, don't you suppose we would have found it out in all these years? Why, I've been oystering thirty years and I never heard of such nonsense before. But I suppose boys will be boys. We all have to have our fling. Now that I know you're both so set on this foolishness I wouldn't say another word if it wasn't for this business to-night. Alec means to live aboard the Osprey most of the summer and I don't like the idea. Why, anybody can come aboard of her in the middle of the night and do anything he likes. We can't always be waiting on the wireless to get this youngster out of trouble. I tell you I don't like it."

At the mention of danger to Alec, Elsa's face went pale. Presently she fell into a brown study, from which she awoke only when she heard her father say, "For goodness sake! Look at the clock! We must be getting to bed."

He and Mrs. Rumford bustled off, after bidding Alec a hearty good night. "Now, don't you youngsters stay up any longer," said the captain, when Elsa lingered behind.

"We won't," said Elsa. Then she turned to Alec. "It makes me sick to think of you alone in the Osprey at night, now that you have had this trouble with Tom Hardy. Yet you mustn't quit your investigation, either, Alec. Won't you come home at night and sleep ashore?"

"I can't, Elsa. Think of all the time I should waste, sailing back and forth. I can never get over all the oyster grounds as it is. But I can do a great deal if I am right on the job all the time. And besides, I don't really believe there's any danger at all. That gang has had a lesson that will make them pretty careful. They have seen what wireless will do, and they can never be sure what I might do with it."

"You mustn't trust to the wireless, Alec. You must be on your guard all the time. If you insist upon sleeping in the Osprey, you must pass the nights where nobody can find you. I know a place where you can hide easily, where you couldn't be found in a week. To-morrow I'm going out to the Bay with you and show you the place. I shall feel better about you when I know you are safe there at night. I wouldn't ever run in to the place until after dark. Then if you douse your light nobody can see where you go, and your hiding-place will never be known."

"Bully for you!" cried Alec. "I needed help to-morrow the worst way possible. I'm going to study old Hardy's oyster-beds, and I want to make the best job possible."

"Whenever you need help, Alec, don't hesitate to ask me. I'll help you whenever I can."