He almost didn't hear Rabastan calling to him, and for a moment, he resisted the wand being taken from his hand. But as the magic stopped, and the voices cried out, he turned, his eyes filled with a rage as he looked upon Rabastan. He saw the level look he got in return, feeling the strength of the other man as he helped him calm enough, coming back to himself. It was slow, and he took time to get his breathing under control as he realised the dark magic had tried to take over.
It wasn't easy, and he pulled away from Rabastan, his hands clenched tight in his hair as he paced, fighting the darkness for control. He fought with it - told it that if it took over it would never be able to enjoy it again - and slowly it was subdued. He didn't know how long he was in the thrall of the magic, but he finally managed to stop pacing, the sound in the room almost deathly quiet. Either the Muggle had passed out, or was dead - Guilian didn't know or care, but when he finally managed to look upon Rabastan again, the darkness in his gaze had faded. He was winning.