The Nguruvilu

What if the Dumbledore took Voldemort's son and placed him with the Potter's and sent them into hiding with a fake prophecy. That night Voldemort doesn't kill the real daughter of the Potter's, but is claimed the Girl who lived, and Voldemort takes his son to raise him as a dark lord.
What is a Nguruvilu? And are shadows alive or just listen to those who see?

I'll try to upload as much as possible, but I always pre right and don't always have lot of time on my hands. So I will try. If there are any new words that aren't used often I will explain them or magic creatures.