Cloak of Mystery [Harry Potter]

When I found myself in the world of Harry Potter, I thought my knowledge of the future would give me an advantage. Instead, I quickly realized just how ordinary I was. I failed to become part of the main trio's legend, and I could barely change anything at all.

Over time, I drifted away from them and chose to stay out of their path. My goal became simple: survive the coming war, and then live a quiet life.

But everything changed when I came across a strange object resembling a Rubik's Cube and took the first step toward a mystery that would have been better left untouched.