It Has A Dark Past - One In Which A Number Of Humans Were Killed. A Past That Caused It To Christen Itself Murderbot. But It Has Only Vague Memories Of The Massacre That Spawned That Title, And It Wants To Know More. Teaming Up With A Research Transport Vessal Named Art (you Don't Want To Know What The A Stands For), Murderbot Heads To The Mining Facility Where It Went Rogue. What It Discovers Will Forever Change The Way It Thinks ... Martha Wells.