Headed for some well-deserved shore leave, Shepard is gunned down in the streets of Seattle, a victim of "a mugging gone stupid". He awakens, not in a hospital bed, but in the surreal world of Purgatory.Within seconds of his arrival, he is saved from a gruesome and painful end, by his new best friend Horace. That's Quintus Horatius Flaccus, the philosopher, to you Roman history buffs. Horace explains to Shepard the cold, hard rules for surviving in...