"Six years after her twin sister's death, 16-year-old Sage discovers a shocking secret, her sister didn't die, she was committed to Willowbrook State School until she recently went missing, and, determined to find her, Sage walks through its doors, which changes her life in ways she never could have imagined"--

Hazel Hughes finds romance and danger as she travels to Romania with her employer, Dr. Sam MacInnes, and her uncle, Count Petrescu, in an attempt to save her twin sister, who is slowly going mad inside the Coppergate Tower. Hazel and Sam must fight their way past vampires, clockwork beasts, and their own insecurities as they try to reach her sister in the impenetrable tower before time runs out.

Nantucket is only two and a half hours away from Martha's Vineyard by ferry. But the two islands might as well be worlds apart for a set of identical twin sisters who have been at odds for years. Just because twins look exactly the same doesn't mean they're anything alike - and Tabitha and Harper Frost have spent their whole lives trying to prove this point. When a family crisis forces them to band together - or at least appear to - the twins come...

""Daddy, there's a man in our room..." Alfie wakes one night to find his twin daughters at the foot of his bed, claiming there's a shadowy figure in their bedroom. When no such thing can be found, he assumes the girls had a nightmare. He isn't surprised that they're troubled. Grief has made its home at Hart House: nine months ago, the twins' mother Pippa died unexpectedly, leaving Alfie to raise them alone. And now, when the girls mention a new imaginary...

"For generations, the princes of Ilara have married the most beautiful maidens from the ocean village of Varenia. But though every girl longs to be chosen as the next princess, the cost of becoming royalty is higher than any of them could ever imagine--Nor once dreamed of seeing the wondrous wealth and beauty of Ilara, the kingdom that's ruled her village for as long as anyone can remember. But when a childhood accident left her with a permanent scar,...

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...

"For her high school graduation, Richelle Bach's father gives her and her identical twin sister, Michelle, matching opal necklaces. "These opals look identical," he tells them, "but the fire inside each is completely unique--just like the two of you." The two sisters couldn't be more different, and their paths diverge as they embark on adulthood. Years pass, until--at their father's behest--they both come home for Christmas. What happens then forever...