With power comes a price, and the Devil has come to collect on an ancestral deal. David's days are numbered, and death looms at his door. Reluctantly, he reaches out to the only person he's ever trusted, his ex-boyfriend and secret society rival Rhys, for help. However, the only way to get to Rhys is through his wife, Moira. Thrust into each other's care, emotions once buried deep resurface, and the trio race to figure out their feelings for one another before the Devil steals David away for good . . .

Cassie Andrews works in a New York City bookshop, shelving books, making coffee for customers, and living an unassuming, ordinary life. Until the day one of her favorite customers—a lonely yet charming old man—dies right in front of her. Cassie is devastated. She always loved his stories, and now she has nothing to remember him by. Nothing but the last book he was reading. But this is no ordinary book… It is the Book of Doors. Inscribed with enigmatic words and mysterious drawings, it promises Cassie that any door is every door. You just need to know how to open them.

Eighteen-year-old Bel has lived her whole life in the shadow of her mom’s mysterious disappearance. Sixteen years ago, Rachel Price vanished and young Bel was the only witness, but she has no memory of it. Rachel is gone, long presumed dead, and Bel wishes everyone would just move on. But the case is dredged up from the past when the Price family agrees to a true crime documentary. Bel can’t wait for filming to end, for life to go back to normal. And then the impossible happens. Rachel Price reappears, and life will never be normal again.

Zara Jones believes in magic because the alternative is too painful to consider—that her murdered sister is gone forever and there is nothing she can do about it. Rather than grieving and moving on, Zara decides she will do whatever it takes to claw her sister back from the grave—even trading in the occult.

1887. London, but not as you know it. The Industrial Revolution went further than anyone could have imagined, and the sprawling, chaotic metropolis of Even Greater London spreads across the entire southern half of England. The immense Tower casts electricity through the sky, powering the mind-boggling mechanisms of the city around it. The engineer-army of Isambard Kingdom Brunel swarms across the capital, building, demolishing, and rebuilding whatever they see fit. And at the heart of all this sits the country's first Private Investigation Agency.