Tiaral

"To the one who defeated me.
If you are reading this note, it means that I somehow lost to you. It's sad, but there's nothing I can do about it. Despite this, I don't want the results of my careful preparations to be wasted, so I will share this with you. Not far from Girr, in an inconspicuous cave in the eastern mountain region, I hid a chest with a potion of strength, which I planned to drink before the battle with Burtarg. So, if you also plan to take his place as the hekkel lord, then use it. This miraculous potion will greatly enhance all your abilities, but be careful: the effect lasts only a few minutes."

At the bottom of the note were the coordinates.