Cor Blimey - coincidentally,
A Dark-Adapted Eye is currently $1.99 at Amazon (US). Even if you've already voted or if you don't particularly want to vote for Barbara Vine's entry, here is an opportunity to pick up a copy of the book at a good price.
LINK
This novel was given the Edgar Award for Best Novel in 1987. I haven't read it myself, but I've loved the handful of Barbara Vine books I've read.