For high school senior Nell and her friends, a vacation house on a private Florida island sounds like the makings of a dream spring break. But Nell brings secrets with her—secrets that fuse with the island's tragic history, trapping them all with a curse that surrounds the island in a toxic, vengeful mist and the surrounding waters with an unseen, devouring beast. Getting out alive means risking her friendships, her sanity, and even her own life.

Karys Eska is a deathspeaker, locked into an irrevocable compact with Sabaster, a terrifying eldritch being—three-faced, hundred-winged, unforgiving—who has granted her the ability to communicate with the newly departed. She pays the rent by using her abilities to investigate suspicious deaths around the troubled city she calls home. When a job goes sideways and connects her to a dying stranger with some very dangerous secrets, her entire world is upended.

After spending the summer wracked with guilt about causing the accident that killed her little sister, ambitious gamer and chronic liar Viv returns to Twitch streaming. She never told her parents the truth about the accident, but she hopes that maybe making it big in streaming and giving the money to them is penance enough for her mistakes.

Magic is in Delilah Bea’s blood. Her absentee father is the world’s most famous cursebreaker, while all the women in her family are fated to never find true love. So when Delilah sets out to complete her magical Calling and gain her full powers as a witch, she has the perfect task in mind—breaking the Bea family curse. But Delilah’s Calling is hijacked by Kieran Pelumbra, the spoiled son of the most powerful family in the country, and breaking his curse suddenly becomes her official assignment.

Growing up in Slater, Isadora Chang never felt at ease in the repressive small town, even before she realized she was bisexual—but after the deaths of two childhood friends, Slater went from feeling claustrophobic to suffocating. So, Isa took off before the town could swallow her, too. Even though it meant leaving everything she knew behind, including her last surviving friend, Mason. When Isa’s abusive father dies, however, she agrees to come back from art school just long enough to collect the inheritance. But then Mason turns up at the cemetery with a revelation and a plea.

Connie can't deny she's nervous about meeting her boyfriend's family. Spending the weekend at their ritzy woodland summer home, Evan's already given her fair warning that his parents are cold, snobbish, and especially unpleasant toward those outside their usual social circles. So when Evan's mother warmly greets them with open arms, Connie is as confused as he is. They're so friendly, in fact, Evan himself can hardly believe they're real. Then, while helping Evan's mother with dinner, Connie overhears strange noises coming from the basement—what almost sounds like voices calling out for help.

Ruby is terrified to cave to her feelings for Sean and risk him crushing her heart. Sean is pumped to spend a week with Ruby in Paris on their senior class trip, and he’ll wait however long until she’s ready to take things further. But when Ruby’s best friend sneaks out the first night to meet a mysterious French boy, Ruby goes after her with two classmates, but caves to another temptation: attending mystery boy’s exclusive party in the Paris catacombs, the intricate web of tunnels beneath the city, home to six million long-dead Parisians. Only they never reach the party.

Naomi Kelly will do anything to make her new brand consulting business a success. When she lands a career saving contract to rebrand the Mukherjee family’s failing local bazaar, she knows there can be no mistakes. But as the “oops” baby of a free-spirited Bengali mother, Naomi’s lack of connection to her roots represents everything Gia Mukherjee disdains. Enter, Dev Mukherjee.

Reverend Deacon Elder does the Lord’s work in his own unique way. A former marine with the ability to detect and cast out demons, Deke goes where the need—and the evil—is greatest. After receiving a terrifying warning of a botched exorcism, Deke shows up in Somerton, Tennessee, ready for battle. The demon possessing sixteen-year-old Carlyss Bolerjack had only partially been driven out, and Deke must convince a traumatized Carlyss to submit to a second exorcism.

James Hunter has made a tactical error. His new role as protection officer to Prince Magnus of Norway was supposed to be an exciting change. Instead he’s marooned on a royal estate in the middle of nowhere charged with chasing after demon children and dodging the machinations of meddling staff. And the crowning jewel in this little drama—the children’s nanny is none other than Laila Bruset. The woman whose heart he broke. The woman who still holds his.