I am looking forward to reading this book sometime soon: Tales of the Truly Grotesque: The Stench of Sulphur Swamp (book 1) by the magnificently named Odysseus Malodorus.
The author's blog, trulygrotesque.com, is most excellent. Book 2, Tales of the Truly Grotesque: Hook Lion, and Stinker, is also on my list. My first impressions are that these books are part of what I like to call the 'morbid kid' genre, Gothic stories full of melodrama, dire predicaments, and sweaty, hairy adults with unsightly facial moles. I would put Lemony Snicket's A Series of Unfortunate Events in this category also.
Vile indeed. The market for unpleasantness is immense. Roald Dahl was one of my childhood favourites. Who could forget the heinous Miss Trunchbull throwing little school children out the window? There were only a choice few to choose from back then.