The Darkness Knows (Detective Konrad Series)

A frozen body is discovered emerging from the icy depths of Iceland's Langjokull glacier, apparently that of a businessman who disappeared thirty years before. At the time, an extensive search and police investigation yielded no results - one of the missing man's business associates was briefly held in custody, but there wasn't enough evidence to charge him.

Now the suspect is arrested again and Konrad, the retired detective who originally investigated the disappearance, is called back to reopen the case that has weighed on his mind for decades.

When a woman approaches Konrad with an important new revelation, a fire is lit under this long-cold case.