"You have more fun as a Shadowhunter than a Mundane with a toy any day." Jace caught himself staring at Alec for a moment before turning back to the tunnel ahead. The only light came from their swords and he realized as another attempted rushed attack that it seemed to shy away from the bright light. Determined still to try to kill them, but definitely reacting.

"If they live in the pitch black the light would hurt." he murmured, drawing another sword, whispering a name to the blade before moving in a flash and blur of light in the dark. It was almost too easy, too fun, like sparring. The thought made his stomach drop suddenly as he remember Sebastian and how easily his ego had been knocked out of him.

"No. Nothing is going to happen to either of us." He couldn't have any doubts now. No matter what had happened by the lake.