Sisters of Salt And Iron Sisters of Blood and Spirit 02

"Lark Noble is finally happy. She finally has friends-people who know that she can communicate with the ghost of her dead twin sister and haven't run screaming from her—and she has Ben, the cute guy she never saw coming. Wren Noble is lonely. Unable to interact with the living, she wants to be happy for her sister, but she feels like she's losing her. It doesn't help that Kevin, the very not-dead guy she was starting to fall for, seems to be moving on. Then Wren meets Noah, the spirit of a young man who died a century ago. Noah makes Wren feel something she's never felt before. But Noah has a dark influence on Wren, and he drives the sisters apart for the first time in their lives. As Halloween approaches, bringing the dead closer to the world of the living, Lark must find a way to stop whatever deadly act Noah is planning, even if it means going through her sister to do so." -- Back Cover.