On day 176, a metal hand jerks out from beneath the snow. Painfully, it pulls itself up until the whole metal skeleton is revealed--it has a half-ruined metal body, as if parts of it have been scavenged, and two unblinking red lights for eyes. There's something like skin attached to its scalp, and red hair spills messily down.

It will pursue until it either catches someone or can no longer reach them.