"Mouse isn't dead," Niki disagreed, ignoring Goyle for the moment. "He's right there." Reaching out, he touched a pale fingertip to Theodore's arm, to indicate where 'there' was. "He's alive. Won't you squeak?" He thought Theodore the most intriguing little mite.
And then he blinked and he looked up through dark lashes, at 'Greg' who was tall and... oh. Rather familiar as well. "He's Goyle," he corrected, because who could forget one of Draco Malfoy's two hulking sidekicks? Niki had been a year below them, but he remembered. They were in the same house after all - although Nikolai Urquhart had looked wholly different back then.
And then his head tilted, slightly to the side. "Well I don't know where he is," he said to the nothingness, before his attention was back on the pair.