Hannah finds herself in a dream with Toby curled up beside her. A vision of Kaylie appears, and this time Hannah dances with her. Kaylie tells Hannah to live without regret and says that her death was an accident. She adds that Toby seems to see Hannah for who she is and helps her to feel again. Kaylie asks Hannah to promise to dance more and then disappears.

Hannah awakens in the lighthouse with Toby beside her. She walks outside but finds it utterly quiet and lifeless. Toby finds Hannah and tries to comfort her, but she leaves for work and tells Toby to head back to the shack.

Hannah decides that she wants to leave town without Toby but finds herself going back to him for another night. When she awakens, she finds him on the beach below, drawing the alphabet. Hannah joins Toby and reveals that she knows the answer to the Hangman riddle is “uncopyrightable.” When Hannah mentions the poem by William Blake, something stirs in Toby, and he recalls the initials S and Z, likely belonging to his two sisters.

When Toby asks about Hannah’s family, she admits that her family is dangerous and that they have to be careful about how and when Toby leaves. They dance together in the moonlight and kiss, and Hannah wonders what she’s getting into.

Hannah can see that Toby will soon be healthy enough to leave the lighthouse and initially plans to part ways with him then. However, as she and Toby play various games to pass the time, they fall deeper and deeper into their romance.

Hannah and Toby play a game called Don’t Look Down where they pretend to be walking on very high, dangerous places. Hannah looks out to sea; Toby sees a storm coming and tells Hannah that she is her own storm. They eventually get caught in the rain and return to the lighthouse, where Toby strips Hannah of her clothes and helps her warm up.

Hannah and Toby return to the shack in the morning. Jackson refuses to hear anything about their relationship. He does ask Hannah why she’s taking such a risk, but Hannah cannot explain her need to feel alive and how Toby fulfills it.

Hannah returns to her apartment one last time to gather her belongings and is confronted by her cousin Rory, who shows up unannounced. He declares that the family has been watching the apartment and thought she left town. Hannah refuses to tell him anything, and he eventually leaves, but Hannah now knows that she and Toby have to leave tonight.

Hannah returns to the shack and finds Toby at the lighthouse. She tells him that they have to leave, but Toby would rather kiss, and before long, they knock over a candle. The resulting fire, though small, causes Toby to remember the fire he set and how Kaylie died. Hannah refers to him by his real name, and it becomes clear to Toby that she knew all along. He runs out to the cliff’s edge to jump, but Kaylie stops him and makes him promise to live. She tells him that she loves him and always will, suggesting that they start a new life somewhere else.

Toby admits that he cannot go with Hannah because it would risk both of their lives. Instead, he plans to disappear alone, despite Hannah’s protests. He admits that his memories have returned and reveals that he was adopted by the Hawthornes after they murdered his father, a crime boss named William Blake. Toby explains that his family tree is poison and that he cannot risk Hannah being part of that.

When Hannah wakes up, Toby is gone. She finds a letter in his place; it details his fears of the family hurting her and states that Hannah was the only person to ever really know or understand him. Hannah thinks about all she knows about Toby, from his perceptiveness to his love of word puzzles. She knows that they love each other. Before leaving, Hannah says goodbye to Jackson, who hands her money and tells her to change her name.

Three months later, Hannah is living in Connecticut and working as a waiter. She changed her name to Sarah and is pregnant with a child. Though it is not Toby’s, she sees the child as the future she and Toby could have had together and wishes Toby could be part of it. On the night she gives birth, a storm hits, and Hannah cannot reach a hospital or emergency line. Toby appears and helps her until an ambulance arrives. He tells her how much he loves her and then leaves again.

Toby appears again at the hospital, long enough to help Hannah name her daughter Avery Kylie Grambs (after her biological father). Toby already sees the baby as his own but admits that he cannot be with her or Hannah as long as his father is looking for him. He leaves Hannah with a pile of postcards he has been writing for her.

Eighteen months later, Hannah is raising her daughter alone. Toby’s adoptive mother appears at the diner one day and warns that his father will find Hannah soon. Hannah returns home with a sense of fear that she didn’t have before but vows to protect her daughter.