What the Dead Know

What the Dead Know (2007) by Laura Lippman. Thirty years ago two young sisters were abducted from a shopping mall. Not a trace of their bodies was ever found. But now a woman has appeared, claiming to be one of the long-lost "Bethany Girls." Could she be what she claims? If so, why has she waited so long to come forward? The parts of this mystery are all very interesting, but somehow it doesn't hang together very well. Grade: B