logic puzzle

Peggy arched her back, trying to gain enough height to slip the loop off of the branch, but a sudden rustle in the trees nearby her made her jump - not the helpful way that might have freed her, either, but rather a startled sort of jolt that was accompanied by a surprised squeak. She craned her head to peer through the trees, and suddenly flushed quite pink beneath her fur in mortification. It was Caelestis, regarding her with a grin as she sat back to watch Peggy's predicament. She was the last person Peggy would have wanted to see her in this situation, and on top of that she'd managed to make her jump like a frightened pup by sneaking up on her. "Uhm, hi there Caelestis," she said with a somewhat weak smile in return. "I uhm... I see you're back," she added lamely, then surreptitiously tried to arch her back again to attempt to free herself so she could pretend she'd never been stuck at all, but it was no more successful than her first attempt had been.