Blue Twilight – Maggie Shayne

They are drawn by his deception, then disappear into the darkness forever… Endover, New Hampshire, looks innocent. But below its surface an ancient powerful thirst lurks. And when two girls go missing, only one person can find them: private investigator Maxine Stuart. No other living mortal knows as much about the undead as Maxie.But the dark force controlling Endover will use that knowledge to strengthen his hold on the town – and on her. Not even Lou Malone, the man Maxie most desires, can convince her to abandon her crusade against a madman’s yearning for power…and resurrected love.