The Daughter of Time

There are plenty of detailed reviews of this book out there. I will give just a very brief synopsis.
The book opens with Police Inspector Grant in hospital after having received a serious injury while pursuing a criminal. Bored silly, he casts about for something to do and chances upon a portrait of Richard III. The portrait seems to have little resemblance to the popular image of an evil hunchback. Then, flat on his back, he uses his detecting skills to solve the 450 year old mystery of Richard III and the Little Princes in the Tower.
Good book.