"Silly!" murmured Betty.
"Oh, don't mind us. A legal opinion would be most excellent to have," mocked Grace. "Now who is eating the chocolates?" she wanted to know.
Betty did not answer. She bent over the black box, with its indefinable air of mystery, and the three queer letters on the top. She was, seemingly, trying to find a way to open it.
Finally she straightened up, looked once more across the bay and said:
"Well, let's take it to Edgemere."
"And let's hurry, too!" urged Amy.
"Hurry? Why?" asked Grace. "There's no more danger from the storm."
"No, but those men might come back, and, finding their treasure gone—oh, well, let's hurry," she finished.
"Don't make me nervous," begged Grace, with a glance over her shoulder. "Come along, Betty. I'm just dying to see what is in it. But I'm not so sure those men in the boat left it, and if they demand it don't you give it up to them."
"Oh, I should say not!" cried Mollie, bristling a bit. "We found the box. They'll have to prove ownership."