"Smilla's Sense of Snow" is one of my favorite novels of all time. Quite ironic, considering that I almost didn't read it because the Julia Ormond-movie almost turned me away from it completely.
The narrator, Smilla, is, to be blunt, obnoxious, arrogant, mean-spirited, and emotionally damaged. But she also makes for an intriguing guide through the novel. She's very interesting, the way Holden Caulfield is interesting.
The plot of the novel begins with Smilla's attempts to unravel the mysterious death of a young boy who lived in the same apartment building. The boy supposedly fell off the roof to his death, but by examining the snow tracks -- Smilla's sense of snow -- she determines that he didn't fall.
Long before Neal Stephenson's "Cryptonomicon" came around, "Smilla's Sense of Snow" presented a scientifically-nerdy view of the thriller, packed with all kinds of trivia and even a math equation relating to the density of snow.
I recommended this book to three of my co-workers, all of whom raved about it as much as I did. Unfortunately, I didn't find "Borderliners" to be anywhere near the same level. Hoeg may be a one-hit wonder, but that hit is a bull's eye.