瑪莎·霍爾·凱莉（Martha Hall Kelly）是土生土長的新英格蘭人。《失去名字的女孩》是她的第一本小說，根據“二戰”曆史中真實的人物經曆改編。

拉文斯布呂剋是納粹唯一的女子集中營，此前卻鮮為人知，這是第一次有文學作品將其作為主題。

瑪莎初次瞭解到書中主角 卡洛琳的故事，是在《維多利亞》雜誌發錶於1999年的一篇文章中，從此對她念念不忘。幾年之後，瑪莎參觀瞭卡洛琳種滿丁香花的故居“海屋”，愈加對其經曆著迷。她發現，卡洛琳是一位真正的英雄，卻已被世界遺忘。

接下來，她利用一切業餘時間開展有關拉文斯布呂剋的調研工作，足跡遍布康涅狄格州、華盛頓、波蘭、德國和法國，查閱瞭海量的檔案資料，也采訪瞭事件的親曆者。

2009年，她正式開始寫作《失去名字的女孩》一書，將七十四位波蘭女性的照片貼在辦公室中，感受她們的情感和命運。全書從開始構思到最終完成耗時十年之久。2016年甫一齣版，就登上《紐約時報》《齣版人周刊》《洛杉磯時報》等主流媒體暢銷榜，並在美國亞馬遜和Goodreads獲得4星半的高口碑。卡洛琳和她的波蘭女孩的故事打動瞭來自全球28個國傢的韆韆萬萬普通讀者，為她們的遭遇和人性之光而感動落淚。

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.