Broken City — Christopher Woods

Mathew Kade has taken cases to find missing people many times. He's taken cases to find items lost during the Fall of civilization after the Corporate Wars. He's investigated murders and thefts. But the search for a serial killer in the tunnels under a broken city might be the strangest case he's taken. With the help of a couple of Squires from the Society of the Sword, he is in pursuit of a deadly person who has been killing for more than twenty five years. Looks like Kade has his work cut out for him.