Dark, imaginative, and written with such beautiful simplicity. 
 I read this more slowly than I do most things, to both savor the writing and not miss any clues as the fate of the Blackwoods was revealed. The narrator is Miss Mary Katherine Blackwood, who introduces herself, 
 "I am eighteen years old, and I live with my sister Constance. I have often thought that with any luck at all I could have been born a werewolf, because the two middle fingers on both my hands are the same length, but I have had to be content with what I had. I dislike washing myself, and dogs, and noise. I like my sister Constance, and Richard Plantagenet, and Amanita phalloides, the deathcap mushroom. Everyone else in my family is dead." 
 Delicious! 
 (And as an aside, if you pick up the edition with the forward by Lethem, you may want to skip that in order to avoid plot spoilers.)