Frankenstein's creation...

The issue of narrator brought up by Doc Hoc is an interesting one.

I like the idea that Victor himself is certainly not supposed to be trusted, simply because of his mental and psychological state. He is tormented by his own failure and by the vision of his horrific creature, so there's no way that his testimony can be taken as an effective guide to the story.

But his monster... this is a being that has been taught nothing. Not only has it not learned to deceive from any other source, but it is also in a very vulnerable position of being in a mode of discovery, both of the world around him and the world within him. These two things in conjunction with each other make him a very reliable and honest narrator.