Unlike the rest of trial that the princes have undergone, this one is unique as there was no broadcast after they went underground. The only sign they have about their current state is a candlelight that takes the place of the princes as they line up accordingly, making it easy to identify who is who.
After they lost their consciousness, it didn't take much time before they regained their senses, but what appeared before them was scary as there were scenes in front of them. Everybody has their illusion.
The first prince woke up in a world of battle with his third brother whom he cherishes was fighting by his side as they were trying to attack some invaders, during their battle against the invaders, the third prince got capture and the invaders were using him as a bargaining chip to get the first prince to lay down his arms and surround, or they would take the life of the brother he loved.