Even as the wielder of the triforce of wisdom, Zelda was having a hard time understanding what had actually just happened. Who was that shadowy doppelganger of Link, why did he have that Ocarina? One that radiated with so much power. Why did he give it to Link? 

He had also recognized [i]her[/i] as the Princess almost immediately. Was her disguise inadequate? She didn't believe so, something else was at play here, he hadn't recognized her by her clothing. Most people wouldn't know the Princesses' face in town, but the shadow Link had. 

"Ciella..." She started out slowly. "Do you know who that was?" The shadow had mentioned her, she had to know something.