Dark Diamond Escape

You are dreaming that you are being abducted by a huge bird and you are flying in the sky. You feel mixed emotions like you are scared and afraid that you might fall, and you feel the excitement and happy because you are flying in the sky. Then the huge bird stops in a Dark Diamond Cave. The huge bird left you there and you don’t know why. There is a magic portal inside the Dark Diamond Cave, but the door is locked and it needs a key to open it. Find the key so that you can enter in the Dark Diamond Cave and enter into the portal to escape from that place.