An excellent career story. Marcia Throme helps her famous father in his research into the cause of a serious disease, while she is studying for her MD at a great New York hospital. She is often discouraged by the endless patience and thoroughness essential to research, yet is convinced that selfless devotion to work is the life of any serious scientist. She regains her perspective when first failure and then success are hers, and she realizes that all work and no play are making Jill a dull girl and that the bridge of true knowledge is built single stone by single stone. Most readable, shrewd characterization, grand natural dialogue.