Underneath the capitol of Rutan, there is a dungeon chamber that has existed since the solians built the first part of the city. For almost 1000 years (as of the current year in Muunfel), a solian of considerable power has been imprisoned down there.
Her name is lost to the records, and even she scarcely remembers being called anything but “The Winged One”. She is trapped in a circle with manacles leading to her limbs, with extras on her wings. She is fairly free to move around, but within the circle she’s unable to use her magic. She could even pull free of the circle if she really desired, but the Sunforged Steel chains are latched on in such a way that this would tear her wings beyond repair.
Only a few members of the court of Rutan are aware of the prisoner underneath their city. Rutan’s current king is well aware that the end of her mysterious sentence approaches, and is prepared to make sure no one gets in her way when she makes her exit.