With a small smile, Touko drew a figure in the air with her finger. While it looked
similar to the letter S of the Roman alphabet, its true nature was that of the Rune that
served as its basis, Sowilo. Bearing the meaning of "Sun," the Rune's power rapidly
scattered the lingering shadows of Flat's magecraft, like the morning sun melting the
night's frost.

The Case Files of Lord El-Melloi II, Volume 3, Chapter 2, Part 3