"Night Sins" by Tami Hoag

DESCRIPTION:

A peaceful Minnesota town, where crime is something that just doesn’t happen, is about to face its worst nightmare. A young boy disappears. There are no witnesses, no clues—only a note, cleverly taunting, casually cruel. Has a cold-blooded kidnapper struck? Or is this the reawakening of a long-quiet serial killer?
 


Nothing bad happens in Deer Lake... until it does. A child abduction. A marriage in trouble. The guilt. The fear. The secrets and deceptions. Smart, sharp detectives: one still struggling with his losses, and one with a chip on her shoulder fall in love amid the madness. The ending wasn't an ending because there is a sequel, and I can't wait to read it!