These two stone slabs existed in the Zul'Farrak Instance Dungeon. The Zul'Farrak Instance Dugeon's level was very low. With Lu Li and Hachi Chan's current strength, they could navigate through it easily.
Yeh'Kinya began researching the writing on the stone slabs after receiving them.
If Yeh'Kinya didn't persist, Lu Li almost wouldn't believe that was even writing, let alone that it used to be the Trolls' writing. Now, the Trolls use another language system.
These early writings could only be seen in sites like ruins. No matter the real identity, Yeh'Kinya finally lived up to his name as an archaeologist. Then again, this could be the type of writing that he had been studying the whole time.