Book two in the Blackwater Novels Series. Rad Fox, a boy who lives with his widowed mother on the Blackwater River, and Dr. Jordan Mason, a family friend who is visiting, discover an evil presence at the old Granger House. The twins, Will and johnny, come to visit Linc, and Johnny gets deathly ill. In this multilayered mystery, once again Llinc shows the value of his skills in the Blackwater Swamp.