To go along with the scary theme, Castle Macabre will have a requirement. You must read at least ONE scary book during the read-a-thon. If you are not a horror fan, then make it a thriller or a mystery, as long as the book has some kind of spooky premise to it. Those who fulfill this requirement, and sign in at the starting line, will automatically be entered in the participant giveaway. They have plenty of prizes, including downloads of Spectre Nightmares and Visitations and my Lovecratian horror short story, "Dark Eyes" that I donated to their big list of prizes.
Read as much or as little as you want. You do not have to join in all week. Start during the week or just do the weekend. It's your decision. Just be sure to sign in at the starting line when you start reading.
The blog will be hosting a scary themed mini-challenge and hopefully will have other mini-challenges and/ or giveaways (see note above).
Sign up at Castle Macabre: http://castlemacabre.blogspot.com/2011/09/announcing-frightful-fall-read-thon.html