Ben looked at both the girls as if he wished to remind them of the band’s pledge of secrecy. But he need not have worried. Ann’s determination to solve the mystery unaided by the help of older people was even stouter than his, and Helen had always proved a trustworthy young thing who never gave a secret away.

Ann knew that her mother wanted to hear more about the afternoon; she must explain a part of what they were doing. “The band has taken an oath, a strict oath to keep secret everything connected with the wreck—you’ll understand, won’t you, that is why we can’t talk about it more? If you ask us to tell you, of course we will, but we are planning a surprise.”

“I don’t think you need to worry about the ship, Emily,” said Mr. Seymour. “Helen played too hard to-day, that’s all that is wrong. To-morrow she will be as brown and rosy as ever.”

So Mrs. Seymour said nothing more and the whole family talked about other things.

Later in the evening Jo came over and the band gathered around the fire in the living room for a conference while Mr. and Mrs. Seymour read in the kitchen.

“What do you suppose it was that we heard?” Ben asked in a whisper; sometimes his mother had been known to hear more than she should. Not that the band wished to deceive, but they had started on an exciting adventure and they meant to put it through alone.

“I know it was not made by ghosts,” asserted Ann. “Nor by that wicked demon, either. He’s nailed too tight to the bow.”

“I don’t believe that I want to go on the wreck again to-morrow,” said Helen. “It makes me feel too tired.”

“We won’t go on again, not any of us,” Jo said. “I’ve been thinking over the situation while I had my supper. We’ll keep a sharp lookout for the man who built that fire; sort of hang around the woods, we will, and watch the ship, too, but from the outside. If anybody or anything climbs over the side we’re bound to see it.”

“I’m going to watch for that lantern,” said Ann.