Viva la Vida
A changeling, or “the Lost” as they often call themselves, is a human who was stolen away from their life by the Gentry. They spent what sometimes seemed like years in Arcadia, were fed the food and drink of the Fae, and slowly became more Fae-like themselves. Some of the more fortunate, staunch, or quick managed to escape Arcadia, and fought their way through the Hedge to return to their former lives.
All of them, however, found that their old life was taken up by a Fetch, a simulacrum that was built specifically to take their place and pretend to be them. The Fetch doesn’t know that they’re a replacement, and so when they’re confronted by the upset changeling, they’re often upset and frightened themselves. Some changelings kill their Fetch. Some leave their Fetch alone. Whatever they do, they have to learn to live a life other than the one they left behind.
They appear human thanks to the Mask, but they can never return to their former lives. They feed on Glamour, and find beauty in all unexpected places. Their ultimate quest is to find their way home—whether that be remaking the life they left behind and trying to cope, or making a new one with the friends that become their family along the way.