Sojourner, sojourner, eyes burning blue
Gnashing and thrashing, like animals do
Sojourner, sojourner, who never speaks true
Hide now, hide now, before it finds you!
-- Afynian children's rhyme
Sojourners are creatures afflicted by Wyrd Sickness that have somehow resisted its negative effects, at least temporarily. The majority of sojourners obtain special abilities from the reality twisting effects of the Wyrd, and suffer milder versions of the regular symptoms for those afflicted.
There are a number of different kinds of sojourners, though research on them is scarce due to their rarity. There is a social stigma against them, given both their appearance (often possessing patches of glowing skin, or odd, fractal growths on their bodies) and powers.
Beings capable of reaching into the minds of others, then taking their thoughts and memories. They are highly sought after in the underbelly of Vale, given their ability to gather important information quickly.