At the explanation-- or lack of one,-- Robin realized that he was likely not in any danger from the blond man. Momentarily speechless, he went back into the bathroom and peered at his face (not his face) again, lightly prodding the unfamiliar, prominent cheekbones, pulling slightly at the big ears; then he stepped back and surveyed the rest of himself. He was skinny again, really skinny, perhaps even moreso than he had been after his first year in the forest. And younger, he expected.
And-- he had been called "Merlin." He knew that there were people here from Camelot; he had talked to Queen Guinevere on the computer. Could this be...?
Going back into the corridor, he eyed the other man carefully. "I'm Robin. Robin of Locksley, though most people know me as Robin Hood. You're not-- are you King Arthur?" Then, remembering what Guinevere had said, he amended, "Or, is it Prince Arthur?"