Inside the tower in Laodicos, The Explorers found a riddle written in elvish on a parchment:
In my arms I hold the dead
From my bosom are families fed
I am the spring of all mortal life
I am the stage of all mortal strife
Marcus Bastien solved the riddle by reciting "earth" in elvish, causing the words to fade from the parchment. Replacing them was an outline of Larcadeon with a mark to the northeast of the island.
It is unclear whether this mark points to challenge or treasure, but investigating the location may provide answers as to the purpose of the riddle.