I'm looking for the title of a novel I bought this novel from a thrift store when I was younger. It was obviously very old because it was falling apart. I remember that it was a very long book. I believe it had two different viewpoints that it kept going back and forth between.
One, I believe was a giant alien and it was searching the Earth. The Earth has been ravaged (it reminded me of Mad Max, humans live like nomads and travel with horses and sleep in tents). One man goes out exploring or something. These two viewpoints then meet. The alien sees the man on the horse and it thinks it is some weird creature. That's all that I remember of it but if someone could get me the title, it would be much appreciated!