Oath of Blue Eyes location (Elzowin's Shade)

Clue

Sylvains are gathered at the plaza in Rothun, talking to one another. "I heard the Oath of Blue Eyes, the ring and the necklace, were put up for sale in the black market." "The Oath of Blue Eyes? Aren't they the tokens of trust that the queen of Rohendel bestowed upon the three knight commanders? A ring, a necklace, and a pair of earrings that had a blue gem stuck in the center..." "The knight commanders were on a mission when that explosion hit Xeneela, but no one has heard from them since." "They most likely died." Listening to the story from a distance, Danube let out a short sigh and asked one of the Sylvains. "Do you know where I have to go to find the Oath of Blue Eyes?" "People say it's in a jewelry shop in Rothun. I hear it's heavily sought after."

Story

Danube found the coolest place in Elzowin's Shade and started digging. Not long after, she was standing in front of a shallow pit. She threw the Oath of Blue Eyes—Adrinne's ring, Debussy's necklace, and her own earrings—into the pit, then covered it with dirt. "I'm in your debt yet again. This feeling of regret will never cease to exist in me, but I'll keep on living. I hope you rest peacefully in Elzowin's Shade." Danube's tearful voice vanished into the air. It was just like the day Xeneela fell.