<p>Humanity&rsquo;s Commonwealth won its war with the alien Shrehari Empire seven decades ago. &nbsp;Starships engaged in commerce have replaced the battlecruisers and much of that commerce flows through free ports established on what was once a disputed frontier. &nbsp;Yet even long after the armistice the relationship between humans and an unfathomable easily offended species remains tense. &nbsp;When someone assassinates a Shrehari trade emissary on Aquilonia Station a human-owned free port leaving a Commonwealth Navy officer as the sole suspect everyone fears the worst.</p><p>An alien envoy killed by a member of the Armed Services is a case for the Commonwealth Constabulary humanity&rsquo;s interstellar police force. &nbsp;And with galactic peace at stake the investigation lands on the desk of Chief Superintendent Caelin Morrow.</p><p>As head of the Rim Sector&rsquo;s internal affairs division Morrow is one of the most disliked cops in the Commonwealth. &nbsp;She investigates those in authority &mdash; members of the police the military and federal government officials.&nbsp; It&rsquo;s a tough job but Morrow and her officers are also known as the last of the incorruptibles. &nbsp;It makes them ideal investigators to satisfy an angry Shrehari government.</p><p>However soon after Morrow arrives on Aquilonia to dig for the truth she realizes something more ominous than one of the seven deadly sins is behind the alien&rsquo;s murder. &nbsp;<strong>Was his death an act of passion or an act of politics? And what will the result of her investigation mean for the future of humanity&rsquo;s relations with its restive alien neighbor?</strong></p>