"When I looked back from the top, the house seemed to have shrunken there in the darkness, to have become a piece of the desolation, like an empty beer can tossed beside the road. I crossed over and down, heading across a field toward the place where I had parked, wishing I had not looked back."

To me, of all the books I've ever read, that is up amongst the top couple most depressing passages I've come across. It's also an exceptionally good summary, in some ways, of Corwin himself - his life (at least as chronicled in the 10 books of the series) is horrifically tragic... But most of it is really never expressed except as a function of Corwin's own hindsight. His little internal monologue about his involvement in Bleys' attempt on Amber vs. his own attempt, his monologue over his deck of Trumps right at the end of the 5th book, even his discussions with Luke in the Hall of Mirrors in the short stories after the end of the series...