Shadowfire Stone

You give Kuyiza bint Zayi the Translator Unreadable Dericost Tome.
Kuyiza begins translating and transcribing the text for you, happily chatting along as she works.
Kuyiza bint Zayi the Translator tells you, "It has been such a long while since I have had something new to work with. People usually bring me bits of parchment from Frore... not that I mind Frore..."
Kuyiza bint Zayi the Translator tells you, "Sometimes they bring me something about the undead scholar Rytheran... but I've seen most of what is said in those texts already..."
Kuyiza bint Zayi the Translator tells you, "Then there was that whole Elemental business... well... I wasn't able to leave my cottage because they were everywhere for a time..."
Kuyiza bint Zayi the Translator tells you, "And who would have thought that the Dericost would help us seal up the tunnels of the... oh my..."
Kuyiza stops mid sentence, rapidly finishes her transcriptions and seals the tome with wax.
Kuyiza bint Zayi the Translator tells you, "You are working for the Shadow Hunter Killcrane, yes? Quickly, take this directly to him. Don't dawdle. What is in this tome is of great import."
Kuyiza bint Zayi the Translator gives you Translated Dericost Tome.

You allow Ciandra, Arcanum Alchemist to examine your Repaired Shadow Stone.
Ciandra, Arcanum Alchemist tells you, "I've found a way to alter these stones to work with an Isparian Weapon, but I need you to get something for me first. I've managed, in my research, to locate a possible location for one of Atlan's Workshops, where he made the first weapons we based the Isparian Weapons on."
Ciandra, Arcanum Alchemist tells you, "The portal should be at 66.9N 15.9E, along the outside of the Mt. Esper Caldera. Go there, and gather for me whatever information you can."