Harry straightened up as Wormtail approached the gravestone, cut the ropes and gave him back his wand. As soon as he was free, he fell down being bound so tightly but then he got up, pulled the gag out of his mouth and chucked it at Peter who had joined the watching Death Eaters. Voldemort and his followers chortled at this seemingly childish action of his but the next second their laughter was cut off as Wormtail dropped to his knees clutching his groin with the ball of cloth lying next to him. The Dark Lord cast a Hover charm to levitate what should have been only the gag but as the the cloth floated up, it revealed a wickedly sharp stone hidden just under it.
They had not known that when Harry was getting up after being freed, he had picked up the fist-sized stone and hid it. When he pulled out the gag from his mouth, he did so with the same hand, leaving no one with the idea that he held something else in his hand as well. trying to hex Peter was the first thought in his mind but two things stopped him from using magic. First, he was surrounded by other wizards who could put him down in a flash if his wand so much as twitched. Secondly, Voldemort's frequent use of the word 'Muggle' had struck a chord with him. He realized that being a wizard didn't mean that he could not use non-magical means to defend or attack.
'There, that solves the rat infestation problem. No more rats for people to worry about as you won't be able to produce any, Wormtail,' said Harry coldly.
'That was nice, Harry Potter but,' said Voldemort, an evil smile upon his face and pausing for a second, 'I thought you were a wizard, Potter. What you did was so Muggle! Are you going to fight me the Muggle way? I was hoping for a proper duel, after all. Was that too much of an expectation from you? You know how to duel though, don't you? They must have taught you that much?'
Harry said nothing. He just looked at Voldemort, tense and ready. He had evaluated his chances of escaping the place and decided that he would have to cause a good enough diversion in order to be able to do so.
"Let's bow to each other. Bow to the Dark Lord, Harry Potter,' said Voldemort bowing his head slightly but never taking eyes off him.
'I will never bow to the killer of my parents, Voldemort,' said Harry.
'Obeisance to your betters is something I will teach you before I kill you and bury you in the same filthy grave where my father lies. You will die and the wizarding world will never know about it. They will also not know about my rebirth until I start ruling them.' said he imagining the horror the magical world would feel when they learned about their savior's demise. 'And now we duel.'