It's been a long time since I read a medieval mystery so I suppose I was about due. The Invention of Fire, was a complex, literary novel filled with a large cast and several simultaneous stories. It's not for the faint of heart. Sixteen corpses were discovered in a London sewage ditch, and John Gower (think Little Finger from Game of Thrones but waay less handsome) has been told in secret that he should investigate. What he uncovers is a nest of half truths, flat out lies and dangerous, dangerous motives that will affect all of London. Intriguing, but... slow and a bit hard to get into. For fans of medieval mysteries and Chaucer only.