The Timelight

Image description:

Scheme of the common Dwarven Sunclock, also known as the "Timelight". it can be found in dwarven dwellings below a narrow shaft leading up to the surface. The Timelight contains circles, numbers, letters and lines cut intricately into its face. Various arcane symbols, certain times specific to that dwarven cavern's longitude and latitude, and other significant points are carved into the Timeface as well. As the light angle of the sun changes from above, the bright dot of fire reflected on the stone moves in a figure eight or the infinity symbol. Image drawn by Bard Judith.