"... Zoe."
"But ..." Jon looked intently at the the girl standing in the doorway. She was a Goth, but so were innumerable other girls. Her face was the same shape as Zoe's, and her features were in roughly the same positions - her eyes were still close together - but the details were wrong. This "Zoe's" eyes were blue instead of brown. Her nose was upturned over thinner lips. It was as if this stranger were auditioning for the part of the real Zoe. Vaguely similar, but no substitute.
"But what, Jon?" Even her voice was similar to Zoe's, though her tone wasn't.
Jon's face was frozen with panic. He had to force himself to speak. "Why am I in .. the guest room? I ... live here."
Other-Zoe shook her head. "No, Jon, you ..."