The Valley of the Nine, in Elder Speech Dol Naev’de, was once a valley in Toussaint when the elves still lived there. Later the Sansretour River flooded it, wiping it off the map and turning it into part of Sansretour Marsh.

An ancient elven ruin still lies hidden in its depths, and treasure hunters keep telling stories about it. The flooded valley appears in Applied Escapology and Turn and Face the Strange.