Forever by Maggie Stiefvater

Forever (The Wolves of Mercy Falls #3) by Maggie Stiefvater

then.

When Sam met Grace, he was a wolf and she was a girl. Eventually he found a way to become a boy, and their loved moved from curious distance to the intense closeness of shared lives.

now.

That should have been the end of their story. But Grace was not meant to stay human. Now she is the wolf. And the wolves of Mercy Falls are about to be kill in one final, spectacular hunt.

forever.

Sam would do anything for Grace. But can one boy and one love really change a hostile, predatory world? The past, the present, and the future are about to collide in one pure moment – a moment of death or life, farewell or forever.

Forever is the final book of the trilogy. It was published on July 12, 2011.

Shelby finds Olivia and kills her. Grace turns into a human and manages to call Sam, but by the time he arrives for her, she has already turned back. A desperate Cole tries to call Isabel but since she's still upset at his rejection, he leaves 21 voicemails on her machine, the last one simply, "I wish you'd answer." Grace is chased into a sinkhole by Shelby. Sam and Cole find her and manage to save her, locking her in the bathroom until she can change back. Isabel's shocked to discover that her father is arranging for the wolves to be removed from the protected species list. Cole reads Beck's diaries and discovers that the wolves have been moved once before, when Hannah, a wolf who could retain her human memories in wolf form, lead them. Sam is interrogated by Officer Koenig as he is the suspect behind Olivia's death and possible rape (as she was found naked) and Grace's disappearance. Sam and Grace tell him about the wolves and he tells them that he owns land just outside of Mercy Falls where the wolves would be safe. Grace visits her parents to say goodbye, but they have replaced her with a cat. Cole captures Beck and calls Sam and Grace. He injects Beck with a dodgy substance he made, despite Sam's protests, and it turns Beck human again. They tell him that Sam was successfully cured but they have to move the wolves. Beck tells them about Hannah and turns back into a wolf, agreeing to help. Cole injects Sam and himself, turning them into wolves. The helicopter catches up to them and Beck is killed. The pack splits when Shelby and Sam fight. Shelby attacks Cole but they're shot. Isabel, who has driven up to the commotion, is hurt by Cole's apparent death and drives onto the scene. Her father texts her "Get out of there." She replies "When you do." The hunt stops and the wolves arrive safely. Finally, Isabel discovers that her parents are sending her to California for ruining the hunt. Cole calls her and she's thrilled that he's alive. He admits he needed to talk to her before he saw Sam and Grace. She tells him to keep her number, and they say goodbye.