"I can escape!"
It was the best Lucy could come up with in the short time she had- and it worked, in a way. Lucy quickly found herself becoming smaller again, only this time, she had no wings. As she climbed to her feet, she looked up and realized she was still on her captor's shoulder, and the thief that approached with a dagger was confused, glancing about for the now inch-high Lucy.
Without wasting a moment, Lucy slid down the thief's arm, landing on the ground safely thanks to her decreased size, and then ran and hid while the thieves were looking for her.
"Bloody hell, she wasn't bluffing!"
"Where is the little strumpet?!"
"Bah, this is too much trouble. Get back to the boss and tell him she's packing magic!"
Lucy watched the thieves rush from behind a stack of crates. So they were after her... And it seemed like they were headed in the direction of the Key...