When Ruby woke up on her tenth birthday, something about her had changed. Something alarming enough to make her parents lock her in the garage and call the police. Something that gets her sent to Thurmond, a brutal government “rehabilitation camp.” She might have survived the mysterious disease that’s killed most of America’s children, but she and the others have emerged with something far worse: frightening abilities they cannot control.
Now sixteen, Ruby is one of the dangerous ones.
When the truth comes out, Ruby barely escapes Thurmond with her life. Now she’s on the run, desperate to find the one safe haven left for kids like her—East River. She joins a group of kids who escaped their own camp. Liam, their brave leader, is falling hard for Ruby. But no matter how much she aches for him, Ruby can’t risk getting close. Not after what happened to her parents.
When they arrive at East River, nothing is as it seems, least of all its mysterious leader. But there are other forces at work, people who will stop at nothing to use Ruby in their fight against the government. Ruby will be faced with a terrible choice, one that may mean giving up her only chance at a life worth living.

Ruby never asked for the abilities that almost cost her her life. Now she must call upon them on a daily basis, leading dangerous missions to bring down a corrupt government and breaking into the minds of her enemies. Other kids in the Children’s League call Ruby “Leader”, but she knows what she really is: a monster. 
When Ruby is entrusted with an explosive secret, she must embark on her most dangerous mission yet: leaving the Children’s League behind. Crucial information about the disease that killed most of America’s children—and turned Ruby and the others who lived into feared and hated outcasts—has survived every attempt to destroy it. But the truth is only saved in one place: a flashdrive in the hands of Liam Stewart, the boy Ruby once believed was her future—and who now wouldn’t recognize her. 
As Ruby sets out across a desperate, lawless country to find Liam—and answers about the catastrophe that has ripped both her life and America apart—she is torn between old friends and the promise she made to serve the League. Ruby will do anything to protect the people she loves. But what if winning the war means losing herself? 

After the 1st wave, only darkness remains. After the 2nd, only the lucky escape. And after the 3rd, only the unlucky survive. After the 4th wave, only one rule applies: trust no one.
Now, it’s the dawn of the 5th wave, and on a lonely stretch of highway, Cassie runs from Them. The beings who only look human, who roam the countryside killing anyone they see. Who have scattered Earth’s last survivors. To stay alone is to stay alive, Cassie believes, until she meets Evan Walker.
Beguiling and mysterious, Evan Walker may be Cassie’s only hope for rescuing her brother—or even saving herself. But Cassie must choose: between trust and despair, between defiance and surrender, between life and death. To give up or to get up.

How do you rid the Earth of seven billion humans? Rid the humans of their humanity.
Surviving the first four waves was nearly impossible. Now Cassie Sullivan finds herself in a new world, a world in which the fundamental trust that binds us together is gone. As the 5th Wave rolls across the landscape, Cassie, Ben, and Ringer are forced to confront the Others’ ultimate goal: the extermination of the human race.
Cassie and her friends haven’t seen the depths to which the Others will sink, nor have the Others seen the heights to which humanity will rise, in the ultimate battle between life and death, hope and despair, love and hate.