Erik gently runs his fingers over the bruise, now terrified that Charles may have seriously injured his head.

Deciding that he has to leave him to fetch help, he places one last kiss on Charles' forehead before sprinting out of the door and down the corridor to Hank's room.

He bangs on the door and pushes it open. "Charles had a fit. I need you now."

And he's already racing back before Hank's even acknowledged him.