"From the outside, everyone might think Fern and Rose are as close as twin sisters can be: Rose is the responsible one, with a home and a husband and a fierce desire to become a mother. Fern is the quirky one, the free spirit, the librarian who avoids social interaction and whom the world might just describe as truly odd. But the sisters are devoted to one another and Rose has always been Fern's protector from the time they were small. Fern needed...

'My sister was abducted from here nearly thirty years ago. The person who took her was never found. And neither was she. Her abductor nearly killed me. So I'm back here now trying to find the truth.' Atlee Pine has spent most of her life trying to find out what happened that fateful night in Andersonville, Georgia. Her six-year-old twin sister, Mercy, was taken and Atlee was left for dead while their parents were apparently partying downstairs. One...

"Lillian Kaufman hasn't heard from her twin sister since Eleanor left for a mysterious job at an Army base somewhere in Tennessee. Then she learns that Eleanor is missing. Lillian leaves New York to sneak into the mysterious town of Oak Ridge, only to learn that Eleanor has vanished without a trace-and she's not the only one. But how do you find someone in a town so dangerous it doesn't officially exist? Forced to pretend to be Eleanor, Lillian finds...

For many long years, Atlee Pine was tormented by uncertainty after her twin sister, Mercy, was abducted at the age of six and never seen again. Now, just as Atlee is pressured to end her investigation into Mercy's disappearance, she finally gets her most promising breakthrough yet: the identity of her sister's kidnapper, Ito Vincenzo. With time running out, Atlee and her assistant Carol Blum race to Vincenzo's last known location in Trenton, New Jersey...

"Maureen and Francine Carter are twins and best friends. They participate in the same clubs, enjoy the same foods, and are partners on all their school projects. But just before the girls start sixth grade, Francine becomes Fran -- a girl who wants to join the chorus, run for class president, and dress in fashionable outfits that set her apart from Maureen. A girl who seems happy to share only two classes with her sister! Maureen and Francine are...

It's 1944 when the twin sisters arrive at Auschwitz with their mother and grandfather. In their benighted new world, Pearl and Stasha Zagorski take refuge in their identical natures, comforting themselves with the private language and shared games of their childhood. As part of the experimental population of twins known as Mengele's Zoo, the girls experience privileges and horrors unknown to others, and they find themselves changed, stripped of the...