effectively unsettling weird fiction. it was fairly clear from the start what had happened and where things were going, but Conan Doyle still managed to keep a sense of inevitability throughout. maybe that would have been less obvious to his initial audience. 
 the chapter in comedy Scottish accent left me cold: it didn't work, and didn't make any sense in context. and i thought he flubbed the ending a bit, with too much heavy-handed, unnecessary exposition in the diary extract. the very last bit was very enjoyable though, and a little reminiscent of The Hound of the Baskervilles.