I'm re-reading The Doomsday Book by Connie Willis. It's partly medical mystery, partly historical novel and a little bit of science fiction (set in the near future). It's extremely well-written. That woman can make you miss so much sleep, turning the pages when you should be catching z's.

The protagonist finds herself in England in 1348, in the raging fires of the plague that destroyed villages and brought the nobility to its knees, clearing a path for the middle class in subsequent centuries. The plague itself isn't the mystery; another illness is. The tale is told at Christmastide with all the richness of a 14th century tapestry.

It's one of those books you wish you'd never read so you could once again have the excitement and discovery of reading it for the first time.

However, she wrote a short story called, "The Last Winnebago," which was so heartbreaking and so real, I'll never read it again.