Ilessan Tower is a ruin that appears in the region of Glenumbra, High Rock. The only structure shown is a fallen tower. Inside is the entrance to a dungeon where Red Rook Bandits have started to stock resources for allies. Exploring and clearing the ruin, unlocks the the explorer achievement Ilessan Tower Explorer.
Collect items for the Jester's Festival.
- Ilessan Tower (south-eastern room)
- Note to Lucien (next to the entrance)
- Red Rook Orders (quest-related)
- True Heirs of the Empire (north from the location)
- Skyshard (northeastern cave, by the waterfall)