//Can either be that you've previously summoned Jack or just know him somehow- specify which please xD
It was weird, but you felt like you were being watched. No one was around though, so you shrugged it off. But the feeling never went away for the rest of the day. It'd be gone tomorrow...right?
It wasn't. But this time you were out doing errands, and was checking over something next to one of those tall, mirror pillars. A flicker of movement in it caught your eyes.
You waited, looking at the mirror at the corner of your eyes. The feeling was stronger now, and just a bit irritating. Just when you were about to give up, it happened again.
A face was in the mirror. It was there for a second but it was there alright. You didn't want to wait for it to happen again, lightly knocking at the pillar. Honestly, this could be an elaborate prank.
A soft curse from /inside/ the mirror threw away the prank theory fast though. The face flickered in again, but this time the demon's entire body was in view. His clawed hands were half out of the mirror and half in it.
He froze when he saw you staring at him with wide eyes, and he tried to disappear again.
