Do Unto Others — Michael Z. Williamson

DO UNTO OTHERS BEFORE THEY DO UNTO YOU ...

At one time, the Prescot family were just Welsh coal miners. Then they broke through with the technology needed to exploit the subsurface ores of entire planets. This created the problem of being the richest people in the universe, because money is a small blessing when enemies are quite willing to spend billions for the chance at trillions.

So Bryan Prescot and his daughter Caron hired bodyguards who would be utterly loyal under any circumstances: Ripple Creek Security, the best in the business.

The danger comes to a head inside the domes and mines of the planet Govannon, as Ripple Creek's finest team is matched against a desperate enemy. Caron Prescot has only six bodyguards against an army, but she has two aces in the hole. And Elke, Ripple Creek Security's psychotic ion expert, has a nuke.

The problem with Elke having a nuke is th Elke will use it.