After an unthinkable tragedy on Halloween, Jackson must decide if he should stay in Grey Hills, or pack up everything and leave with Sam and the others. A new start is appealing, but Dominick has made it clear that Jackson is not welcome. When Jackson starts sleepwalking and hearing voices, he isn't sure if he is going crazy, or if he has inherited an unspeakable power. Meanwhile, Claire is determined to find out exactly what happened on Halloween, which brings Jackson directly into her line of fire. Sinews of thy Heart is Book #4 from The Haunting of Grey Hills, an EPIC Press series. Some titles may contain explicit content and/or language.