Jonathan Clements 
Ruthless 

His bite is worse than his bark!Johnny Alpha is a mutant, an outcast from humanity. Living on the outside all his life, his only hope for survival was to become a Strontium Dog: a sanctioned mutant bounty hunter. In the lawless frontier of the galaxy, when the Strontium Dogs are after you, there’s no escape.However, when Johnny’s sister goes missing, accused of a crime she didn’t commit, he is determined to discover the truth. The rules no longer apply when it comes to a Dog’s family and anyone who gets in his way better watch out!