The papers call it "The Suicide Virus." The teenagers of Gethsemane, Ohio, are killing themselves at an alarming rate.

Steven Wrigley is trying to survive his senior year of high school, still reeling from the death of his mother and adjusting to life with his father. Along the way, he meets a girl who becomes another kind of obsession: Elise Devon.

Elise's secrets keep her distanced from everyone. She has a special place she calls the Obscura. She goes there when she is depressed or angry. The Obscura makes her feel like nothing she's ever felt before. When she loses herself to the Obscura, she fears she also gives herself to something much darker, something much more powerful. Something calling itself the Sorrow King.

Who is the Sorrow King?

He is carved from wood and bone.

He smells like wax, dead leaves, and memories.

He travels by moonlight and drinks the sorrow of others.

Can love exact vengeance on a monster made from madness, depression, and misery? Or will the Sorrow King bleed the town dry before satiating himself and moving on?