Talk to the Gem at (spl_fild02 26, 218), near the fairy, and attempt to dig it out. Several thief bugs will spawn, kill them. Repeat until you obtain a Red Jewel from it.
Talk to the Gem at (man_fild03 227, 109), near the giant, and attempt to dig it out. Several thief bugs will spawn, kill them. Repeat until you obtain a Blue Jewel from it.
Return to the Rune Midgart's Magician with the gemstones, he says he will extract the voices from the gems and send them to the Arunafeltz linguist.
Return to the Arunafeltz linguist, He tells you that he has made amazing progress decoding the language. So much so that he's unsure how to even store all the data. He asks you to speak the Schwartzvalt Mechanic.
The Schwartzvalt Mechanic says he needs some way to store the massive amount of data, and asks you to inquire with the Rune Midgart's Magician about a magical gem to hold the data.
The Rune Midgart's Magician says he needs an Ore unlike any found in the old world to store the data. He asks you to go find one on the Manuk fields.
Return to him with 1 Unidentified Mineral (obtained from Mysterious Rock, several of which can be found on all three Manuk maps). He asks you to wait a minute while he works his magic.
Talk to the magician and he asks you to take the gem to the Schwartzvalt Mechanic.[Keep talking to him to get the gem]
The Schwartzvalt Mechanic says it will take him at least an hour to complete a machine to translate using the gem. Return in 1 hour.
Return to the mechanic and he will give you the Ring of the Wise Ancient King and some EXP.