Wow, that was gripping. The cover of my copy mentions that this is considered one of the first modern psychological thrillers, and I can easily see how it laid the groundwork for those that came after. The story is simple, but it hooked me immediately and never let go. 
 Part of what kept me on edge, too, was my unfamiliarity with the author. I couldn't guess how dark the story was going to be. ((view spoiler)[The answer is very. (hide spoiler)]) Can't wait to check out his other books -- Fowles might be a new favorite!