“Sit up and take notice,” interrupted Nat, for he could not help making light of the troubles with which he felt the girls were too heavily burdened.

“Exactly that,” agreed the doctor.  “Miss Harriwell could not have fallen into better hands.  I will, however, see her safely into the boat.”

It was a delightful task to assist the sick girl, realizing what it would mean ultimately.  Dorothy insisted that Tavia go on ahead with Cologne, as she had had, Dorothy said, enough of nursing.  But Tavia wanted to leave some word at the tent—­a written word about its use.  To this no one would agree, so she was obliged to go on without doing as she wished.

Down the cliffs started the party.  Tavia, with Cologne, was soon joined by three of the Hays girls, from the next camp, who, although they had not been allowed to go with the searching party, managed to follow them at a distance, and who had heard of the discovery when the boys went for the doctor.

Then came the boys, Ned, Nat, Ralph, and Jack, carrying Molly on a cot.  Dorothy held Molly’s hand, and talked cheerfully to her as they all moved carefully along.

Doctor Ashton had reason to be particularly interested.  It was he who had taken his vacation from the sanitarium when Molly made her escape.

He, too, had been impressed by the similarity between Dorothy and Molly, but, of course, he did not speak of it; neither did he know of the trouble which that resemblance had made for Dorothy.

The trip on the water was made without a mishap, and, as the doctor said, Molly gained strength and courage with almost every new breath.

Then to the camp!  Dorothy ran on ahead, for Molly was walking.

“Oh, what has happened now?” asked Mrs. Markin, seeing the boys supporting Molly.

“Nothing but good news this time,” replied Dorothy.  “We have found Tavia, we have found a sick girl, and we have brought them all back to have a good time at Camp Capital.”

This was good news indeed—­Dorothy always knew how to cheer.

“Welcome!” announced the lady, planting a kiss on Dorothy’s now flushed cheek.  “There is a visitor waiting for you,” he added.

“For me?”

Mary Bell, the nurse, stepped out on the camp porch.  She was smiling, and all the anxiety had left her face.

“You little robber!” she said to Dorothy.  “Where are my clothes?”

But before she could get a reply she saw Mary Harriwell.  She was too well trained to need an explanation of the case as it stood now.

There were, to her, two Mary Harriwells!

“Twins!” was all that Mrs. Markin could say, as she helped the sick girl up the steps.

Miss Bell instantly took charge of Molly.  She was removed to a quiet room in the camp barn, away from all noise and all confusion.

“Daddy,” whispered Dorothy, as the major stood looking lovingly at her, “come on.”