The Nomad's Vigil
Everything we know about this thing could fit on an index card. At the top of that card, underlined several times in red, would be the phrase “Incredibly strong, incredibly fast, and possesses a scream that incapacitates its victims and drives them insane.” We’re not even sure whether this is unique or part of a sub-group. We’ve seen large physical variety in various reports, but the way it changes and alters its body, it could all be one terrible monster. Still working on weaknesses or any way to kill it. If you run into it in the meantime, just skip town as quickly as possible.