Does anyone know the key for translating the old sylestia language in the Old Tomb in Umbra Forest? I tried translating and only got as far as a little bit past the first sentence.

It takes time to slowly translate the whole thing, but if you want the full translation, someone has already done it:

Link: https://www.sylestia.com/forums/?thread=622&page=7#62 Author: Peppershadow Time Posted: 1/18/2015 at 11:30 AM [quote=370051] This Is The Tomb Of King Desius. I, ruler of sylestia. In order to seal his sprit in eternal slumber we constructed this tomb with four magical seals. Each seal locks a piece of his spirit in another plane of existence if all four seals are destroyed king Desius will be free to return to this plane more powerful than ever before. With each seal in place, King Desius will have that piece of his spirit weakened in this plane. In order the seals are the seal of alacrity, the seal of courage the seal of cunning and the seal of perception. Only those true to each seal will have the power to activate them and only when all four seals are activated will they illuminate. ... Finally FINISHED :D

When you meet the seals, you'll need to use the right pet, with at least 200 points of the skill required (the points must only be from level up/proficiency points to count).

This thread has a discussion on which seal requires which stat skill: https://www.sylestia.com/forums/?thread=622

Oh, Thank you! This helps out so much!!!