Pharos: Phaethon Series, Book 2

Jack and Rosie tried to return to their normal hacker lives after encountering the metal fae, but now people are disappearing. Their next-door neighbor Zelda, a psychobilly actress with a screaming habit, is on the receiving end of a home invasion by a living cloud that was likely meant for them. They're not sure what they're dealing with...and Rosie may have been infected by the same black dust as the missing locals.She feels it drawing her out to sea, where the others disappeared. She knows better than to go, but when they exhaust their other options, Rosie follows the only lead she has; chasing the impulse she's felt since encountering the black dust. It leads her to the Graves, an old lighthouse, where a Kindwraith has taken up residence. Instead of trying to kill Rosie, it heals her.But if the Kindwraith is a helpful faerie...what's eating people?