What had happened? Thinking back - and the enormity of what he'd done was even worse when he reflected on it; Gabe telling him to stop and William choking him, trying to break his ribs, assaulting him - he finally found a clue. Veela. There was only one thing that rang that particular bell in his recent memory.
"Wand core," he answered, swallowing. "A damaged wand channeling magic, it exploded. There was a girl..." He couldn't remember her name, or even her House. Slytherin, he thought, but maybe he was thinking that for other reasons and it wasn't right at all. If the explosion had affected anyone else, though... "Nate," he said, clutching the blanket tighter around himself. "Nate Novarro. He'll know whose it was. Ask him who else was there."
His head ached, magical over-extension clamping down like a vise around his skull from the wandless magic (what the fuck), and...and because Gabe had smashed a candlestick over William's head trying to get away from him. He shuddered, drawing even further back against the wall. Concussions could cause amnesia, particularly with short-term memory. He thought he remembered everything from the night, but what if there were pieces missing? What if the chunk of absent time he had defined as 'unconsciousness' was actually partly something else? He could have done anything in that bedroom. Anything.
Gabe was in his peripheral vision, but William kept his gaze down, too sick and horrified to look at him. He looked at Gerard instead. "Gabe?" he asked quietly. His stomach rolled. If he'd done anything to Gabe that he now couldn't remember...
And speaking of things he couldn't remember. "You're hurt," he said, surprised and off-guard. Gerard's skin was starting to blister, the skin angry and flushed pink. William had set Gabe's wand on fire, before. He could have easily done the same to Gerard. There was a gray spot in his memory that was nothing but pain and desperation, and it was saturated with Gerard's presence. He swallowed. "I...?"