Try to alter his double’s appearance

“I’ve got it,” says the prince. “We’ll tell her you are my cousin, visiting from Wisteria. We’ll just have you wear glasses, or a hat or something.”

Duncan-2 frowns. “I’m not sure that’s going to be good enough.” He looks around the library. “Surely there’s a simple spell that can change my hair color or something.”

“I’m sure there is,” agreed Duncan, “if we want to take the time to find it.” They both look out the window again at Courtney, and both the boys make identical adjustments of their suddenly-uncomfortable crotches.