The Ring From Outer Space

This is an adventure and puzzle game. This story occurs because of a ring that coming from the outer space. What is the secret hiden in the ring? Where is the ring will going to? What is the puzzle or danger will you face to?
This game has four parts.
The first part is in a cave. Try your best to leave this cave.
The second part is on the cliff. It is very dangerous there.
The third part is on an island. There is a mysterious place.
The four part is in a city of sky. Beautiful place there, and this game will end there.