Problems with crossing Changeling the Lost over with other fantasy 'verses

[Super Evil User]

This was inspired by the second half of the first FMA series, which could be summed up as Promethean meets wizards. I was wondering if it would be possible to have something similar, like a Masquerade occurring within an already fantastical realm.

One big problem (and the most obvious one I can think of) is magic. Unlike in World of Darkness where muggles actively interfere with magic, magic is very much common knowledge and common-use. Even if a True Fae could somehow evade all those wizards screwing around with time and space and whatnot, could the same be said for escaped Changelings? How long would it be until the local mages' guild, arcane college or magocracy found out? I guess it partially depends on how powerful the magic is in the setting. In FMA, for instance, the magic was pretty low-power compared to other fantasy universes, with only Brotherhood's villain approaching the heavy-hitting levels of most sorcerers.

[Leliel]

Wow, a month in the reply. Wow.

Okay, the thing is that fae Contracts are rather subtle, and the ones that aren't are basic things like fireballs - easy to pass off as other magic. Pledges are something unique, and worth noting, but if they try, the Lost could go unpassed for a very long time. Especially given Pledges, which can include vows to secrecy.

Really, it depends on the True Fae, and how visible they feel like being.