Arrow Off The String.

Valerian stood inside the hidden room with his eyes wide open. He was surprised to see the setup in front of him. The room was covered with a shallow layer of dust. The space was not bigger than ten feet. It was a simple square. Fortuna walked around for a bit before she jumped up to his shoulder and sat down. 

The boy cast her a gaze and the cat turned her head the other way. She was still throwing a tantrum at him. Valerian said, "Your Highness, do you see anything that looks like a dragon treasure to you?" 

The room was small and empty. Fortuna did not need to look around to tell that there was no treasure in this place, but just when she was about to tell her answer, she suddenly sensed a strong dragon aura inside the room. However, she could not see anything. She channeled her mana inside his eyes and found a small crack in the floor.