Although Savannah has been warned by her family to stay away from any members of the Clann, and Tristan has been forbidden to speak to Savannah, they both feel an irresistible mutual attraction to each other.

When humans declare war on mermaids, Luce swims to San Francisco Bay where she finds a group of "twice lost" girls, lost once when trauma turned them into mermaids and again when they defied mermaid law, and unites them into an army under her leadership.

When seventeen-year-old Emma's antique-collector parents vanish and her brother's college roommate shows up to become her guardian, he takes her from San Francisco to Boston, where she discovers that she is a powerful "ghostkeeper," which both explains troubling incidents from her past and presents difficult new dilemmas.

Katla's hopes of dodging unfinished business during her senior year are dashed by the arrival of two "Icelandic exchange students," Marik and Jinky, who have come to collect Katla's frail baby sister and take her to the water queen.

It took Luce and her fallen angel boyfriend, Daniel an eternity to find one another, but now he has told her he must go away. Just long enough to hunt down the Outcasts, immortals who want to kill Luce. Daniel hides Luce at Shoreline, a school on the rocky California coast with unusually gifted students: Nephilim, the offspring of fallen angels and humans.

Grace Divine, almost seventeen, learns a dark secret when her childhood friend--practically a brother--returns, upsetting her pastor-father and the rest of her family, around the time strange things are happening in and near their small Minnesota town.

Imagine a place where the dead rest on shelves like books. Each body has a story to tell, a life seen in pictures that only Librarians can read. The dead are called Histories, and the vast realm in which they rest is the Archive. MacKenzie bishop, a Keeper tasked with stopping violent Histories from waking up and escaping the Archive, almost lost her life to a History named Owen this past summer. Now she finds herself haunted by Owen--he makes appearances...

When Ethan wakes after the chilling events of the Eighteenth Moon, his one goal is to return to Lena and his loved ones, while back in Gatlin, Lena vows to do whatever it takes to bring Ethan home--even trusting old enemies and risking the lives of those Ethan left to protect.

"It was supposed to be an ordinary day at the pool, but when lifeguard Nick hesitates during a rescue, seventeen-year-old December uses her gift of foreknowledge to save the drowning man instead. The action comes at a cost. Not only will Nick and December fall in love, but she also sees that his life is now at risk. The other problem? They're basically strangers. December embarks on a mission to save Nick's life and to experience what it feels like...

Consumed by guilt and secrets about his twin brother's death, Marsh Windsor is looking for a thin space--a place where the barrier between this world and the next is thin enough for a person to cross over--in hopes of setting things right.