Wilkie Collins, Basil (1852)
This was Collins' second novel, the first being some sort of historical romance that seems to have little bearing on his later career. But this one is said to be maybe possibly one of the first if not the first "sensation novel." I'd heard it was pretty okay, so I'd been wanting to read it for some time. It's short, anyway, compared to the other Collins novels I've read, so not much of a time investment.