Dear inhabitants of the mirror realms,
We regret to inform you that your reflections have been misplaced. Should you find yourself without a shadow, it is likely that you've ventured too far into the third dimension. Please proceed to the nearest portal and read the following instructions carefully:
Remember: In the labyrinth, the questions you don't ask are often more important than those you do.
Yours non-linearly,
The Department of Absurd Reflections