The miserly miller considered Ruth Fielding a liability; she proved herself in time to be an asset. And as she grew older the warped nature and acid temper of the miller both changed toward his grand-niece. But to bring this about took several years—years filled with more adventure and wider experiences than most girls obtain.

Beginning with her acquaintance with Helen and Tom Cameron, the twins, who lived near the Red Mill, and were the children of a wealthy merchant, Ruth’s life led upward in successive steps into education and fortune. As “Ruth Fielding of the Red Mill”—the title of the first book of this series—the little girl had never dreamed that she would arrive at any eminence. She was just a loving, sympathetic, cheerful soul, whose influence upon those about her was remarkable only because she was so much in earnest and was of honest purpose in all things.

Uncle Jabez could appreciate her honesty, for that was one virtue he himself possessed. He always paid his bills, and paid them when they came due. He considered that because Ruth discovered a sum of money that he lost he owed her a reward. That reward took the form of payment for tuition and board for her first year at Briarwood Hall, where she went with Helen Cameron. At the same time Helen’s brother went to Seven Oaks, a military school for boys.

In this way began the series of adventures which had checkered Ruth Fielding’s career, and as related in the fourteen successive volumes of the series, the girl of the Red Mill is to be met at Briarwood Hall, at Snow Camp, at Lighthouse Point, at Silver Ranch, on Cliff Island, at Sunrise Farm, with the Gypsies, in Moving Pictures, down in Dixie, at College, in the Saddle, in the Red Cross, at the War Front. In this present volume she is introduced, with her chum Helen Cameron and with their friend, Jennie Stone, at the French evacuation Hospital at Clair, not many miles behind a sector of the Western Front held by the brave fighting men of the United States.

Ruth had been there in charge of the supply department of the hospital for some months, and that after some considerable experience at other points in France. As everywhere else she had been, the girl of the Red Mill had made friends around her.

Back of the old-world village of Clair, the one modern touch in which was this hospital, lay upon a wooded height an old château belonging to the ancient family of the Marchands. With the Countess Marchand, a very simple and lovely lady, Ruth had maintained a friendship since soon after arriving at Clair to take up her Red Cross work.

When Tom Cameron, who was at work with his regiment on this very sector of the battle-front, got into trouble while on special duty beyond the German lines, it was by grace of Henri Marchand’s influence, and in his company, that Ruth Fielding was able to get into the German lines and by posing as Tom’s sister, “Fraulein Mina von Brenner,” helped Tom to escape from the military governor of the district.

Aided by Count Allaire Marchand, the Countess’ oldest son, and the then Major Henri Marchand, the girl of the Red Mill and Helen Cameron’s twin brother had returned in safety through the German lines. The adventure had knitted a stronger cord of friendship between Ruth and Tom; although heretofore the young man had quite plainly showed that he considered Ruth much the nicest girl of any of his sister’s acquaintances.

Other than a strong sisterly feeling for Tom Cameron, Ruth had not really revealed. Perhaps that was as deep as her interest in the young man lay. And, in any case, she was not the girl to wear her heart on her sleeve.

The girls who had gone through Briarwood Hall together, and later had entered Ardmore College and were near to finishing their sophomore year when America got into the World War, were not the kind who put “the boys” before every other thought.