Diego has not been hiding his outfit from his cabin, and his preoccupation with the idea of a plague doctor mask is revealed by those eye pieces. As it turns out, glasses + mask = no fun, and Diego's eyesight is pretty bad. However, Diego got Mina to help him transfigure a spare pair of glasses into the lenses of his mask, so when he puts it on he can see perfectly.

He's barely been able to focus on anything but the dance today. He has no idea what happened in class. He and Ravi have big plans tonight, and Diego wants to deliver on the promises he made. Serious agent of the king, hunting down spies, saving the world, being really competent and sexy. Diego looks at himself in the mirror and doesn't really see it in him. He pulls the mask down over his eyes, though, and suddenly it seems a little more plausible.