"And we found a box and maybe it has pirate gold in it!" sang out Bunny. "Look, Bunker!" and the little boy pointed to the box on the sand. It was still partly in the water.

"I see," answered Bunker Blue. "I noticed that you'd been caught by the tide, so I came in the boat to get you. Wait there, Mrs. Slater," he went on. "There's no need of getting your feet wet."

In a little while Bunker rowed up to the place where the box rested and where Bunny, Sue, and the others stood around it, the three children barefooted. The little tongue, or peninsula, of land, was now an island, rapidly growing smaller in size as the tide rose.

"Get in the boat and I'll row you to shore," said Bunker, as he grounded his craft in the sand.

"Have we got to leave the box here?" asked Bunny.

"No, I'll come back and get that after I land you," said the fish boy.

So they all got into the boat, and it did not take Bunker Blue long to row them to shore. Then he went back, and, after a little hard work, he managed to get the box into his boat.

"I'll row this box down to the dock," called Bunker to those on shore. "You walk along the beach until you meet me. Then we can see what's in it."

This was done, and soon Uncle Tad and Mrs. Brown were down on the little pier of Christmas Tree Cove, looking at the box and wondering what could be in it.

"It's heavy, whatever it is," said Uncle Tad.