Both these novels were set in Edinburgh, where both authors now live although O'Farrell was, according to Wikipedia, born in Coleraine only a mile or twenty down the road from here.
Luckenbooth was a brilliant read, and not at all what I expected. Highly recommended for those who like a bit of horror laced with magic realism.
I was slightly disappointed by The Vanishing Act of Esme Lennox. There was something dislikeable about every character with the exception of Esme and even she did not seem fully realised.