He swung around to face the direction he'd heard the voice from, fast enough he had to flare his wings to keep his balance. The stranger's long black trench coat was giving 'member of a cult', but Prompto was far too relieved to see another person to let that deter him from changing course towards them. Even if this was the base for some kind of cult, he'd rather deal with that than freezing to death.

"Hey! You wouldn't happen to know what- where this place is, would you?" His teeth were chattering badly enough that the redhead could probably hear it in his voice.