Link raised a brow at the mention of the castle. Castle Oblivion?

He was distracted from the mounting questions in his head by the young man's question, and Link couldn't help but stare at what was left of his milk with a worried expression on his face.

He sighed. "There's a darkness that's taken over Hyrule. Ganondorf managed to grab a hold of the Triforce and cover Hyrule and the Sacred Realm in evil." He grimaced a bit, knowing that part of it was his fault when he took the Master Sword from the Pedestal of Time. "I'm the only one who can stop him, but I have to break the curses on the temples around Hyrule and awaken all the sages so they can help me."

There was no secret about any of this. Ganondorf probably knew what was going on, and was probably trying to put new curses back on the temples he had already liberated. Right now, with him being stuck in this terrible place, the situation in Hyrule seemed almost hopeless."

Link didn't want his milk anymore. He just stared at it, or rather through it, lost in his depressing thoughts.