All were ashore but Bess, and as such things often happen when they are looked for, the Petrel did careen from the waves of a passing launch, and just as Bess grasped an overhead willow branch, the boat swung out and she sprang in. Everybody laughed, but Bess lost her breath, a condition she disliked because it always added to the deep color of her plump cheeks.

"There!" cried Belle. "Didn't I tell you?"

"I wish that next time, Twin, you would leave me to guess!" exclaimed the other twin, rather pettishly.

"Isn't this perfectly delightful!" exclaimed Hazel, running over the soft earth where ferns were matted, and wild flowers grew tangled in their efforts for freedom. "I never saw such dainty little flowers! Oh! they are sabatial I have seen them in Massachusetts," and she fell to gathering the small pink blooms that rival the wild rose in shade and perfume.

"Here are the Maiden Hair ferns," called Cora. "No wonder they call this Fern Island."

"Let us see how many varieties of fern we can gather," suggested Belle. "I have ferns pressed since last year, and they look so pretty on picture mats."

At this the girls became interested in the number of ferns gatherable. Belle went one way, Bess another, and so on, until each had to call to make another hear her.

Cora ran along fearlessly. She was diving very deep into the ferny woods, and she was intent on coming out first, if it were only in a race to get ferns.

Suddenly she stopped!

What was that sound?