Egg

"Congratulation, Runel," I said to the man as he opened his eyes. "Thank you, healer Brock," he said.

I talked to him for a few minutes like I talked to every person before making a breakthrough.

He is the last person to make a breakthrough and like all before him. It was a success.

"Are you ready now?" asked the masked woman as she appeared beside me. 

"Yes," I said, and before I could say anything further. She put her hand on my shoulder, and I felt myself move at an extremely fast speed.

We moved at a speed I couldn't even see before suddenly stopping. It took me a few seconds to get control over myself before looking around.

I am in a stone hall, and in front of me are huge metallic door. 

It is unguarded, but I could feel the faint soul sense of several Earth Sovereigns around it.

And also of the Sky Sovereign.