"Someone in this castle," William affirmed. Someone who not only knew Spencer was here, but who had access to him personally. Not an unknown enemy lurking at the far edge of the forest, or a dead Dark wizard who'd left behind booby-traps for the next generation. Someone who had been here recently, and might not be gone.
He didn't want to think about that. There was too much else going on in his head, and first and foremost was destroying this thing in a way that would leave no question it was gone. "We need to get rid of it," he said tightly, aware that they couldn't stay unshielded for much longer in the same room with this much Dark magic. "Any ideas?"