That Summer is a dual time track story in which people from 2009 attempt to solve a mystery from the past - 1850. Juliet, our current day heroine, is left an old house just outside London by her aunt. While clearing out the house with a view to sale, she finds a painting by a little known pre Raphaelite painter which intrigues her. She is introduced to Nick, an antiques dealer who can perhaps help her. There is a mystery behind the painting and they set out to solve it. Meanwhile on the other track we learn about the people in the painting and what happened to them. It's a very engrossing story, but I wound up thinking that the people from 1850 seemed much more credible than the ones for 2009. But I recommend it as a good read.