At this point, I have lost track of how many Christopher Moore novels I have read. Either you love his novels, or he just isn't your cup of tea. I happen to love his sense of humor. I listened to Fool a couple of months ago and loved it as well. You can read that review here: http://commanderstrikeher.blogspot.com/2012/04/cbr-iv-book-10-fool-christopher-moore.html
The novel starts out with the death of van Gogh. Did he really shoot himself in a field in Auvers, or was he murdered? Sacre Bleu is the story of Lucian Lusard, a baker/painter in the Montmartre district of Paris in 1890. He was raised around some of the most well-known artists of the Impressionist era. His best friend is Henri de Toulouse-Lautrec, and he was also a friend of Vincent van Gogh. Lucian and Henri have noticed that a lot of their contemporaries seem to have long gaps in their memories, and an awful lot of them are dying of syphilis. This novel is historical fiction with mystery, romance, and plenty of Christopher Moore bawdiness and humor. The beginning is very slow, but I got hooked near the middle. I highly recommend it to anyone who has a love of Paris or the Impressionist period.
I definitely recommend reading the print version of this book. There are several color pictures of Impressionist paintings, and the book is printed in blue ink. It's so pretty!