Fog Heart

Two couples, both skeptical and desperate, are drawn together by a medium named Oona, a fragile, beautiful young woman who knows things that no other living person should know. Is her gift real, or is it the sign of a consuming madness? Can she lead them all to important truths, or will they be trapped in the tightening web of terror and death?
Fog Heart by Thomas Tessier was named one of the best books of the year by Publishers Weekly, and awarded the International Horror Guild's honors for Best Novel.