Stolen

Tim looked at Jasmine's finger and her missing ring. Not only that, she wasn't even using any illusion on herself.

"Where is your ring?" he asked.

Jasmine stared at her own finger and nearly screamed. "Where is my ring? Where did I lose it?" she asked, looking around.

Tim looked at her closely. "No, you're a fake!" he said.

"What?" Jasmine looked up just in time to see Tim jump on her and grapple her to the ground. 

Tim landed on top of Jasmine and held her hands. "Who are you? You're not Jasmine!"

"Idiot! It's me. Let go of me," Jasmine shouted, trying to push Tim off of her. But Tim was simply too heavy for her to do so. And too strong.

"Then where is your ring?" he asked.

"I don't know," Jasmine shouted. "Let go of me already."

"No," Tim said. "If you're Jasmine, then tell me something only she would know about."