Fiend

From a Goodreads Choice and Stoker Award® winning author, Succession meets The House That Horror Built by Christina Henry in this taut, fast-paced tale of sibling betrayal as the three heirs - the golden boy, the ferocious middle sister, the dilettante youngest child - to a powerful syndicate rush to fill the vacuum after their father falls critically ill, not realising the demonic forces he kept at bay.
Some families have skeletons in their closets. This one has a demon in its boardroom.
When Maris Berisha was nine years old, she heard something scratching at the walls of her family's penthouse. It felt like something malevolent was there, watching them.
The Berisha family runs one of the largest import-export companies in the world, and they've always been lucky. Their rivals suffer strokes. Inconvenient buildings catch on fire. Earthquakes swallow up manufacturing plants, destroying harmful evidence. Things always seem to work out for the Berishas. They're blessed.
At least that is what Zef, the patriarch, has always told his three children. And each of them knows their place in the family-Dardan, as the only male heir, must prepare to take over as keeper of the Berisha secrets, Maris's most powerful contribution, much to her dismay, will be to marry strategically, and Nora's job, as the youngest, is to just stay out of the way. But when things stop going as planned, and the family blessing starts looking more like a curse, the Berishas begin to splinter, each hatching their own secret scheme. They didn't get to be one of the richest families in the world without spilling a little blood, but this time, it might be their own.

Alma Katsu's books have been nominated for and won multiple prestigious awards including the Stoker, Goodreads Readers Choice, International Thriller Writers, Locus Magazine, the Western Heritage Awards, Spain's Celsius 232 festival, and appeared on numerous Best Books lists including NPR, the Observer, Barnes and Noble, Apple Books, Goodreads, and Amazon.
She has written two spy novels (RED WIDOW and RED LONDON), the logical marriage of her love of storytelling with her 30+ year career in intelligence. She also writes novels that combine historical fiction with supernatural and horror elements. THE HUNGER (2018), a reimagining of the story of the Donner Party, was named one of NPR's 100 favorite horror stories, was on numerous Best Books of the Year lists, sold rights in 17 languages, and continues to be honored as a new classic in horror. Her first book, THE TAKER (2011), was named one of the top ten debut novels of 2011 by Booklist.
Ms. Katsu is also a contributor to the Washington Post Book World, where she reviews thrillers. She has relocated from the Washington, DC area to the mountains of West Virginia, where she lives with her musician husband Bruce and their two dogs, Nick and Ash.