Hunt Dark Nerinos and collect Cave Nerine Bones. Give them to Alchemist Isaac at the CelestineCaverns Entrance. Use your quest tracker to see your progress.
Alchemist Isaac: First Lieutenant NakanoAzusa, can I ask you to do something Alchemist Isaac: important? NakanoAzusa: Something important? Alchemist Isaac: Yes, it's related to the legend of the Marauder. HiiragiKagami: The Marauder? Alchemist Isaac: The Marauder was a ship with captain Alreg Germann. Alchemist Isaac: He was a well-known soldier, but notorious for his studies Alchemist Isaac: on black magic. NakanoAzusa: Come to think of it, his name does sound familiar. Alchemist Isaac: When the islands moved to the sky, the captain predicted Alchemist Isaac: his death and trapped his spirit in a box. HiiragiKagami: Can a human being cast such a spell? Alchemist Isaac: Yes, but only those well-versed in magic. Some Alchemist Isaac: believe it's a myth, but the box indeed exists. A Alchemist Isaac: research team uncovered documents from the lower Alchemist Isaac: levels of the Marauder. NakanoAzusa: Why is his soul so special? Alchemist Isaac: The ancient document says that he'll bestow his Alchemist Isaac: liberator great riches and near immortality. HiiragiKagami: Should we find this box? Alchemist Isaac: There's a special lock on the box and it will need a Alchemist Isaac: special key: the Key of Emancipation. Now here's my Alchemist Isaac: plan. Are you ready? Let's make it.
Reminder Dialog
Alchemist Isaac: Once I receive the bone, I can grind them and Alchemist Isaac: produce a paste to be solidified into a mold. Then Alchemist Isaac: the key shape will be complete.