I Know What You Need
King, Stephen
In Augusta, Elizabeth Rogan meets a nice young man called Edward Jackson Hamner Jr, for the first time and almost instantly is taken by his similar likes and dislikes to herself. The hit if off almost at once, but his romantic interests are quenched by Tony Lombard - Elizabeth's boyfriend Tony is tragically killed when a red Fiat looses it's brakes approaching the roadworks where Tony is working. Investigations show that the brake lines are melted through, and the cause is purely accidental in nature. Edward becomes more important in Elizabeth's life. But her friend Alice doubts his motives are good.
Edward actually went to school with Elizabeth back in first Grade, and has used Voodoo to influence her and those around her to ensure his success with Elizabeth. Alice succeesd in convincing Elizabeth that there is something odd, and she finds the Voodoo instruments!