website claims that Harry returns the favor in Crais's The Last Detective.Very cool :)
In this first book, Cole is hired by a woman to find her husband. He's been missing for several days along with their son and she's afraid to involve the police so that she doesn't anger him in case he comes home. Elvis decides that he will help this mouse of a woman, mostly so he could see what kind of man her husband was. He ends up in the middle of a case involving kidnapping, murder, extortion, drugs, and even the mob. Did I mention he makes love to two women along the way? Elvis Cole is the cat's ass, no doubt about it.