Humm, what Delita said isnt a spoiler, since he himself doesnt knows what happens there.
This room will be place to one of Thronar's challenges that I will put more work into. The way to awake the dragon, defeat him and even get the reward, will be a mistery that you players should solve, with the help of books, quests, and npcs. It wont be a simple, go there, kill him and retrieve loot.