At Night You were just Ready to Head into the Middle of Pure Heart Valley to see the Fireflies Fly around the place, but then When you already get there you see Someone Holding a Ruby in Their Hand and then they look at you with their narrow green eyes..

"My, My.. What's This?.."

And Then when The Fireflies Start lighting up as you can see the persons Face, it's seems to be Mao Mao as he stares at you with a slight grin under his Mask..