OK, so it is a great story - but it requires great skill in the telling, and Gummer does it more than justice. I picked it up, not quite sure whether I could face the Black Death as my leisure time reading for a week or so, and was hooked by the end of the first paragraph.
And it is not an easy job he has undertaken, either. There has been a lot of scholarship out there in the last few years, effectively comprehensively debunking what we all learned in school, and to get that across at all requires great ability to manage sources. To get it across simply, compellingly and interestingly requires yet more, and Gummer manages it. The historical background, the science, the economics and the eyewitness materials are woven together with great skill, and with a truly excellent narrative drive. Read it, you won't regret it!