Kyra hasn’t been the same since she returned from her mysterious six-year disappearance. Now, on the run from the NSA, Kyra is forced to hide out with others who, like her, have been Returned. Yet she is determined to find Tyler, the boy she loves who was also abducted...all because of her. When her group intercepts a message that Tyler might still be alive but is in the hands of a shadowy government organization that experiments on the Returned, Kyra knows it’s a risk to go after him. What if it’s a trap? And worse, what if the returned Tyler isn’t the same boy she lost?

Ever since Kyra was abducted by aliens and then returned to earth, she has known there was something different about her. Now she knows the truth: she is an alien too. Her alien captors replaced all her human DNA with their own --- gifting her with supernatural powers like incredible healing, enhanced eyesight and telekinesis. But when she’s captured by an unexpected enemy, Kyra begins to wonder if her abilities are also a curse. And is she, as her enemies believe, meant to play some key role in helping an impending alien invasion? Is it programmed into her, something inescapable? Or can she fight that destiny?

Kyra Agnew vanished five years ago. When she wakes up, everyone in her life has moved on, but Kyra's still the sixteen-year-old she was when she vanished. She discovers that others have been "taken" --- but Kyra is the first to have been returned after forty-eight hours. With a secret government agency after her, Kyra desperately tries to reclaim the life she once had...but what if the life she wants back is not her own?

As Charlie journeys to an annual summit to meet with leaders of nearby Queendoms—an event where her ability to understand all languages will be the utmost asset—she is faced with the ultimate betrayal. And the only person she can turn to for help is the evil soul residing within.

Violet’s ability to sense dead bodies is an asset to forensic psychologist Sara Priest, who enlists her to uncover a string of murders by a man known as “the girlfriend collector.” Now the serial killer is on the lookout for a new "relationship," and Violet may have caught his eye.

For as long as Tessa can remember, her country has been at war. When Gideon, a local boy, wins an award for courage, a strange chain of events is set in motion; soon, Tessa finds herself in enemy territory and stumbles upon a shocking secret. 

Violet can sense the echoes of those who've been murdered and the matching imprint that clings to their killers. But though she works to keep her morbid ability a secret, she unwittingly draws the attention of both the FBI and someone else—someone dangerous.