Trouble Doubled — Peter Salisbury

Book 3: Junker's Moon Scrap, Salvage and Servicing Company is in a state of turmoil and uncertainty, following the grievous wounding of its proprietor, Marshall. He hovers close to death having been stabbed by Vanessa Longtail, the notoriously vengeful wife of space pirate Dirk Knight. Finding she had not succeeded in murdering Marshall, as had been her intention, she returns to finish the job.