This strikingly original love story deals with the disintegration of a marriage, a breakdown which occurred against the wishes of its principals and in spite of their good intentions. Martha Pearson, the central figure, is a young woman of character, whose goodness seemed almost forbidding at times. In the midst of serious difficulties with her husband, Charles, she was resolved to be faithful to him, to make something of the partnership on which he seemed to depend so completely. Then Charles went away for a while to mend his health and for the first time in years Martha had the opportunity to assess her life. In the crisis precipitated by the return of her first lover, she found that her marriage had come very near to cutting her off from the sources of happiness. She found also that a happiness once lost can he recovered only partly and on difficult terms. Experiment in Springtime presents with mature technique the subtly dramatic interplay of three modern personalities at a turning point in their lives. The psychological accuracy and depth, the unflinching honesty, for which its author is already known are here applied to a more serious and fascinating problem than Margaret Millar has previously attempted. The result is a novel of extraordinary interest and truth. It will establish a brilliant mystery writer as one of the most promising of our younger novelists