Just finished Dark Matter by Michelle Paver.
Extremely well-written and very evocative of its arctic setting, though as a ghost story it did feel a little anti-climactic. Perhaps it would've worked better as short story (there's a strong element of M.R. James about it), but overall as a few nights spooky entertainment it works well enough.
Now onto something a bit weightier which has been staring at me from the bookcase for ages: The Corrections by Jonathan Franzen