"I'm typically awake most nights when you aren't here." He mentioned lightly as though it were common, and it was as of late. Mark had noticed when Jace was coming and going in the middle of the night. It was hard not to notice when he was so finely tuned into the institute when all else was quiet. Didn't help he was a bit of a light sleeper and suffered from nightmares as well..sleep wasn't something that came easily most of the time.
Looking down to the piano he watched it for a moment while Jace had continued to play. "I didn't know you could play.."