玛莎·霍尔·凯莉（Martha Hall Kelly）是土生土长的新英格兰人。《失去名字的女孩》是她的第一本小说，根据“二战”历史中真实的人物经历改编。

拉文斯布吕克是纳粹唯一的女子集中营，此前却鲜为人知，这是第一次有文学作品将其作为主题。

玛莎初次了解到书中主角 卡洛琳的故事，是在《维多利亚》杂志发表于1999年的一篇文章中，从此对她念念不忘。几年之后，玛莎参观了卡洛琳种满丁香花的故居“海屋”，愈加对其经历着迷。她发现，卡洛琳是一位真正的英雄，却已被世界遗忘。

接下来，她利用一切业余时间开展有关拉文斯布吕克的调研工作，足迹遍布康涅狄格州、华盛顿、波兰、德国和法国，查阅了海量的档案资料，也采访了事件的亲历者。

2009年，她正式开始写作《失去名字的女孩》一书，将七十四位波兰女性的照片贴在办公室中，感受她们的情感和命运。全书从开始构思到最终完成耗时十年之久。2016年甫一出版，就登上《纽约时报》《出版人周刊》《洛杉矶时报》等主流媒体畅销榜，并在美国亚马逊和Goodreads获得4星半的高口碑。卡洛琳和她的波兰女孩的故事打动了来自全球28个国家的千千万万普通读者，为她们的遭遇和人性之光而感动落泪。

Inspired by the life of a real World War II heroine, this debut novel reveals a story of love, redemption, and secrets that were hidden for decades.

New York socialite Caroline Ferriday has her hands full with her post at the French consulate and a new love on the horizon. But Caroline’s world is forever changed when Hitler’s army invades Poland in September 1939—and then sets its sights on France.

An ocean away from Caroline, Kasia Kuzmerick, a Polish teenager, senses her carefree youth disappearing as she is drawn deeper into her role as courier for the underground resistance movement. In a tense atmosphere of watchful eyes and suspecting neighbors, one false move can have dire consequences.

For the ambitious young German doctor, Herta Oberheuser, an ad for a government medical position seems her ticket out of a desolate life. Once hired, though, she finds herself trapped in a male-dominated realm of Nazi secrets and power.

The lives of these three women are set on a collision course when the unthinkable happens and Kasia is sent to Ravensbrück, the notorious Nazi concentration camp for women. Their stories cross continents—from New York to Paris, Germany, and Poland—as Caroline and Kasia strive to bring justice to those whom history has forgotten.