The novel “Irontown Blues” by John Varley was published for the first time in 2018. It’s part of the Eight Worlds series.

When a mysterious woman hires Christopher Bach to find the man who infected her with a genetically modified virus, the private investigator immediately suspects that something doesn’t add up. The main problem is that he’s supposed to look for the alleged culprit in Irontown, a Moon city where the inhabitants make their own laws.

Christopher Bach has very bad memories of Irontown connected to the time when he was a cop. He knows very well that he must move with great caution even if he’s assisted by Sherlock, a genetically modified dog who considers him his pack leader.