Nostalgia, she supposed.
That was the reason she was wandering around in the dead of night, paws silent as they moved through the forest in half-forgotten ways that kept to the shadows, invisible to almost all. She'd given this life up long ago, content to live among the groundlings, content to a life of laziness, amusement. But she still kept fit. She was no longer young, she knew that. But if they ever needed a protector, she would be there.
Maybe that was why she was there too.
There were new arrivals - maybe she was worried.
She'd think more about it later.
For now, middle-aged or not, she was enjoying this. The strength of her limbs as she propelled herself. The way she passed other night-time creatures without their notice. As her red eyes gleamed in the dark, she grinned, invisible. Laziness was nice. But sometimes it was good to feel alive.