Long ago, Nathan lived in a house in the country with his abusive father—and has never told his family what happened there. Long ago, Maddie was a little girl making dolls in her bedroom when she saw something she shouldn’t have—and is trying to remember that lost trauma by making haunting sculptures. Long ago, something sinister walked in the mountains and the coal mines of their hometown in rural Pennsylvania. Now, Nate and Maddie Graves are married, and they have moved back to their hometown with their son, Oliver. And now what happened long ago is happening again...to Oliver.

To eight-year-old Bela, her family is her world. There’s Mommy, Daddo, and Grandma Ruth. But there is also Other Mommy, a malevolent entity who asks her every day: “Can I go inside your heart?” When horrifying incidents around the house signal that Other Mommy is growing tired of asking Bela the question over and over, Bela understands that unless she says yes, her family will soon pay. Other Mommy is getting restless, stronger, bolder. Only the bonds of family can keep Bela safe, but other incidents show cracks in her parents’ marriage. The safety Bela relies on is about to unravel.

The worst thing to ever happen on Hemlock Circle occurred in Ethan Marsh’s backyard. One July night, ten-year-old Ethan and his best friend and neighbor, Billy, fell asleep in a tent set up on a manicured lawn in a quiet, quaint New Jersey cul-de-sac. In the morning, Ethan woke up alone. During the night, someone had sliced the tent open with a knife and taken Billy. He was never seen again. Thirty years later, Ethan has reluctantly returned to his childhood home. Plagued by bad dreams and insomnia, he begins to notice strange things happening in the middle of the night.

Time slips. Doomsday scenarios. Killer butterflies. C. J. Tudor's novels are widely acclaimed for their dark, twisty suspense plots, but with A Sliver of Darkness, she pulls us even further into her dizzying imagination. Riveting, macabre, and explosively original, A Sliver of Darkness is C. J. Tudor at her most wicked and uninhibited.

In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning, the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man — the same one he and his friends saw when they found the body.