Waterstained Note is a note in Conan Exiles.
Description
This note has been under the water for a long time and most of the words have been washed away.
What is left reads:
...enius plan! If it is buried in...
...st pillar, opposite the riv...
...neath the skull of a mammoth...
...ash it! The only?
Source
Waterstained Note can be found in the water around the pillars in the south river.