Dreamland by Alyson Noel

Riley’s finding that the afterlife can be a lonely place when all you do is focus on work. So she goes to the place where dreams happen, hoping to find a way to contact her sister, Ever. She meets the director, who tells her about the two ways to send dreams. As a Dream Jumper, a person can jump into a dreamer’s dream, share a message, and participate. As a Dreamweaver, an entire dream can be created in a studio and sent to the dreamer. But Dreamweaving was outlawed decades ago, and the studio was boarded up. Thinking it’s her only way to reach out to her sister, Riley goes in search of the old studio. There she finds a ghost boy, who’s been creating and sending nightmares to people for years. In order to stop him and reach out to Ever, Riley is going to have to confront and overcome her own fears.