Susie watches as Buckley, his friend Nate, and Holiday the dog run up the stairs.
Buckley tells Nate he can see Susie, and that Susie talks to him and kisses his cheek.
Buckley takes Nate into her room. After her death, Holiday finds Susie's stash of private stuff, and has strewn the items around the room.
Now Buckley finds a bloody twig she'd saved two years before.
(Flashback)
Susie is babysitting Buckley. He gets a twig stuck in his throat and starts chocking.
She'd grabbed the keys to her dad's Mustang and drives him to the hospital, saving his life.
She saves the twig as a memento.
Her Grandma Lynn says she will live long as a result of her heroics.
But Grandma Lynn wasn't right at all.
In heaven, Susie sees a line of crows, holding twigs in their beaks. When she leaves the gazebo (where she watches Earth) to go back to her and Holly's duplex, the crows follow.