Haven Terra and her friends team up with aspiring angels to combat an enclave of shape-shifting devils, an effort that is complicated by Haven's infatuation with repentant devil Lucian, who needs her help to escape the underworld.

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.

Ferocious demons in Hell and powerful angels in Heaven get involved when Luc Cain, born and raised in Hell, trades his demonic powers for mere mortal ones after falling in love with Frannie, who possesses a unique power of her own.

Prompted by her love for the seemingly-doomed Sebastian, sixteen-year-old Evie Johnson returns for another term at the strangely sinister Wyldcliffe Abbey School where she and two close friends try to develop and combine their newly-discovered powers to save Sebastian and themselves from the encroaching forces of evil.

"Three girls who arrive to an abandoned island must outwit and outlast the mysterious killer who awaits them there."-- "Claire's grown up triple-checking locks. Counting her steps. Second-guessing every decision. It's just how she's wired - her worst-case scenarios never actually come true. Until she arrives at an off-the-grid summer camp to find a blackened, burned husk instead of a lodge - and no survivors, except her and two other late arrivals:...

"Merida of DunBroch needs a change. She loves her family--jovial King Fergus, proper Queen Elinor, the mischievous triplets-- and her peaceful kingdom. But she's frustrated by its sluggishness; each day, the same. Merida longs for adventure, purpose, challenge - maybe even, someday, love. But the fiery Princess never expects her disquiet to manifest by way of Feradach, an uncanny supernatural being tasked with rooting out rot and stagnation, who appears...

In the Pacific Northwest, the bond between two best friends is challenged when a mysterious and gifted musician comes between them and awakens an ancient evil.

Seventeen-year-old blue-haired Karou finds herself at the center of a battle between supernatural forces and comes face-to-face with the truth about angels and demons.

"It's Zoey's eighteenth birthmas and the Nerd Herd has been scattered across the country busily adulting for almost a year when Stark calls them back to Tulsa to surprise Z. But all is not well in T-Town. Strange, dark signs are appearing--could it be possible Neferet is stirring? Not willing to chance disaster striking again, Zoey calls on her newly reunited friends to circle with her and add a layer of protection over Neferet's grotto jail. Easy-peasy,...

When sixteen-year-old Lark is murdered, she, her childhood best friend Eva, and a girl she used to babysit, Nyetta, find themselves facing hard truths about their lives and seeking a way to move on.