Call After Midnight. Tess Gerritsen

A ringing phone in the middle of the night begins a horrific journey for newlywed Sarah Fontaine when she is given the news that her husband, Geoffrey, has been killed in a hotel fire in Berlin.Convinced that Geoffrey is still alive, she challenges special agent Nick O'Hara of the U.S. State department to prove her wrong as they crisscross Europe in a desperate search, trying to stay one heartbeat ahead of a dangerous killer and risking everything for answers that may prove fatal.