Sacre Blue, by Christopher Moore

Sacré Bleu is the story of a muse, her enslaver, several Impressionist painters, multiple murders, syphilis, spelunkery, immortality, immolation and the possibly gratuitous use of the word “penis”. As with all Christopher Moore works, it has a hint of mythology which forms the center of the narrative but take off quickly from such staid constraints to a flighty soufflé featuring Henri Toulouse-Latrec as a detective hunting an impossibly ancient shaman (immolation comes into play here).

It’s hilarious. Amazon, or sfpl.org