When a ride breaks down before closing, friends Mateo, Taylor, and Zari find themselves stuck inside the haunted house for the night and discover a hidden staircase leading to a dark crypt.

When Evie Von Rathe discovers that the ghosts in Blight Harbor are disappearing, she teams up with a young ghost named Lark and ventures into the Dark Sun Side, where she unravels a personal mystery and battles with shadow creatures to reach the Nighthouse and release the trapped souls.

"Rebecca Reznik is having a rough time. Her dad lost his job, and her parents are fighting all the time. Her obnoxious brother, Jake, is acting out even more than usual. And post–Bat Mitzvah Becca is expected to be grown up and spiritually mature—whatever that means—but in the wake of these upsets to her routine, she just feels frustrated and helpless. Even worse, she’s starting to suspect that the awful vibes surrounding her house might be...

"Charlie Greer is nothing special--at least not compared to her adopted siblings. Her younger sister is a ghost. Her brother Mateo is a werewolf. Gideon is the product of seriously sketchy experiments that gave him telekinetic powers. Even her parents work for the Division of Extranormal Investigations tracking down all things supernatural, alien, and otherwise unusual. Charlie's mom says her superpower is maturity--which doesn't really count. But...