What Was Hiding

What made something invisible?

Achilles found himself asking that question during his short, but not memorable, time as an evil spirit. The concept of invisibility itself was quite interesting and thought-provoking, after all. And he was a very curious kid during his younger years, perhaps he was still one now.

He used to think that such a question would never have an answer since having a closer look at how invisibility functioned seemed like a fleeting idea for him. But numerous occasions when invisibility had saved him started giving him a rough and vague idea of what it was.

The state of invisibility was clearly more than the refraction of light. It seemed to also involve hiding away the living signals of an individual.