Frore

You give Kuyiza bint Zayi the Translator Complete Rune Transcription.
Kuyiza bint Zayi the Translator tells you, "Hm. This appears to be a portalspace coordinate. Such things are not within my knowledge. You might want to seek out my colleague Marisa bint Fuya."
Kuyiza bint Zayi the Translator tells you, "She would be able to cast a portal to this location. Unfortunately, she's on sabbatical, and has gone to the town of Plateau."
Kuyiza bint Zayi the Translator gives you Gelidite Standing Stone Translation.
Kuyiza bint Zayi the Translator tells you, "Be warned, though - you will need a substantial party to reach the Lost City, and should you die..."
Kuyiza bint Zayi the Translator tells you, "You will be unable to reenter the caves to recover your equipment. Be certain you are prepared before you ask Mairisa to cast the portal!"