(Peter.)
She didn't really recognize the name or number, but out of pure curiousity dialed it.
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Peter looked at the phone as it starting ringing as if it was some kind of strange creature. After the fifth ring he snapped out of his daze and picked it up.
"Hello?"
"H-hi," Antha said. She didn't actually think he would answer, but now that he had she wasn't even sure what to say. "This is Antha calling."
"I think you have the wrong number," Peter said and was about to hang up."
"No! I mean. Is this Peter?"
"Yes. But I don't know an Antha."