Fire!

A building outside the reach of a watch catches fire. A bucket brigade usually saves it; let it burn and it falls to ruin until you repair it. Watch coverage prevents fires.

This disaster event can occur from the Bronze Age through the The Beyond. It only strikes where Safety does not reach, so building a Watch House nearby prevents it.

Most events offer a choice on screen. A building left in ruins can be repaired for part of its cost by tapping it.