"Look at Grandfather Bullfrog!" said Rose. "He is shocked at our behavior. We are big enough to know better, aren't we, sir?" She addressed with deep respect an enormous brown bullfrog, who had come up to see what was the matter, and who sat on a stone surveying the pair with a look of indignant amazement.

"Coax! coax! Brek-ke-ke-kex!" cried Hildegarde. "That is the only sentence of frog-talk I know. It is in a story of Hans Andersen's. Do you see, Rose? He understands; he winked in a most expressive manner. Whom did you get for a wife, when you found Tommelise had run away from you; and what became of the white butterfly?"

The bullfrog evidently resented this inquiry into his most private affairs, and disappeared with an indignant "Glump!"

"Now you shall see me perform the great Nose and Toe Act!" said Hildegarde, jumping from the seat and swimming to the end of the wharf. "I promised to show it to you, you remember." She seized the great toe of her left foot with the right hand, and grasping her nose with the left, threw herself backward into the water.

Rose waited in breathless suspense for what seemed an interminable time; but at length there was a glimmer under the water, then a break, and up came the dauntless diver, gasping but triumphant, still grasping the nose and toe.

"I didn't—let go!" she panted. "I didn't—half—think I could do it, it is so long since I tried."

"I thought you would never come up again!" cried Rose. "It is a dreadful thing to do. You might as well be the Great Northern Diver at once. Are you sure there isn't a web growing between your toes?"

"Oh, that is nothing!" said Hildegarde, laughing. "You should see Papa turn back somersaults in the water. That is worth seeing! Look!" she added, a moment after, "there is a log floating down. I wonder if I can walk on it." She swam to the log, which was coming lazily along with the current; tried to climb on it, and rolled over with it promptly, to Rose's great delight. But, nothing daunted, she tried again and yet again, and finally succeeded in standing up on the log, holding out her arms to balance herself. A pretty picture she made,—lithe and slender as a reed, her fair face all aglow with life and merriment, and the sunshine all round her. "See!" she cried, "I am Taglioni, the queen of the ballet. I had—a—oh! I nearly went over that time—I had a paper-doll once, named Taglioni. She was truly—lovely! You stood her on a piece of wood—just like this; only there was a crack which held her toes, and this has no crack. Now I will perform the Grand Pas de Fée! La-la-tra-la—if I can only get to this end, now! Rose, I forbid you to laugh. You shake the log with your empty mirth. La-la-la—" Here the log, which had its own views, turned quietly over, and the queen of the ballet disappeared with a loud splash, while Rose laughed till she nearly lost hold of her rope.

But now the water-frolic had lasted long enough, and it was nearly breakfast-time. Very reluctantly the girls left the cool delight of the water, and shaking themselves like two Newfoundland dogs, ran into the boat-house, with many exclamations over the good time they had had.

At breakfast they found Miss Wealthy looking a little troubled over a note which she had just received by mail. It was from Mrs. Murray, the matron of the Children's Hospital.