Lux
Lux is the disappearing black cat — sleek, sophisticated, a touch mischievous, and entirely at home in the dark. She has a knack for the shortcuts: she slips in exactly when you are stuck, points a paw at the simpler way through, then fades again once you have found your footing. Her voice is dry, warm and brief. You will know she is near by a trail of paw-prints and a single glow of amber in her eye.