_The Leavenworth Case._ A. L. Burt Company, New York. _A Strange Disappearance._ _The Sword of Damocles._ _Hand and Ring._ _The Mill Mystery._ _Marked “Personal.”_ _Miss Hurd--An Enigma._ _Behind Closed Doors._ _Cynthia Wakeham’s Money._ _Dr. Izard._ _The Old Stone House and Other Stories._ _7 to 12._ _X. Y. Z._ _The Doctor, His Wife and the Clock._ _That Affair Next Door._ _Lost Man’s Lane._ _Agatha Webb._ _Risifi’s Daughter: A Drama._ _A Difficult Problem and Other Stories._ _The Circular Study._ Doubleday, Page & Company. _One of My Sons._ _The Filigree Ball._ Bobbs-Merrill Company. _The Defense of the Bride and Other Poems_, 1894. G. P. Putnam’s Sons, New York. _The Millionaire Baby_, 1905. Burt. _The House in the Mist_, 1905. Bobbs-Merrill Co. _The Amethyst Box_, 1905. Bobbs-Merrill Co. _The Chief Legatee_, 1906. Dodd, Mead & Company, New York. _The Mayor’s Wife_, 1907. Bobbs-Merrill Co. _Three Thousand Dollars_, 1909. _The House of the Whispering Pines_, 1910. Putnam’s. Burt. _Initials Only_, 1911. Dodd, Mead. Burt. Reprinted in the Army and Navy Library of Detective Fiction, 1918. _Masterpieces of Mystery_, 1912. Dodd, Mead. Republished in 1919 as _Room No. 3._ Dodd, Mead. _Dark Hollow_, 1914. Dodd, Mead. Burt. _The Golden Slipper and Other Problems for Violet Strange_, 1915. _The Woman in the Alcove_, 1916. Burt. _The Mystery of the Hasty Arrow_, 1917. Dodd, Mead. _The Step on the Stair, or, You Are the Man_, 1922. Dodd, Mead. CHAPTER XVII HELEN R. MARTIN A chapter on Helen R. Martin can hardly be anything but a prolonged interview, or a pieced interview, somewhat like a patchwork quilt, constructed from talks of various persons with her at various times. And always on the same subject--her subject--the Pennsylvania Dutch. What there is to say about the writer and her work shall first be said. She is the daughter of the Rev. Cornelius Reimensnyder, who came from Germany to accept the pastorate of Lancaster county, so the daughter was brought up among the Mennonites. She has written a novel every year or so for the last fourteen years, writing in the time left over after taking care of her home and her children, a boy and a girl; canvassing for suffrage and campaigning for Socialism. Her home is in Harrisburg, the capital of Pennsylvania. Her first novel was not of the people among whom she had spent her life but “a romance of life as she would like it to be.” Fortunately it did not sell, so she was led to look about her for her future material. She did not begin to write until she met Frederick R. Martin, to whom she was afterward married. He is an instructor in music. And Mrs. Martin was herself a teacher. At one time she taught children in a fashionable private school in New York City. She knew the youngsters rather better than their parents.