" There was a sound of movement, of clinking glass: Amycus was coming round. Before Harry or Luna could act, Professor McGonagall rose to her feet, pointed her wand at the groggy Death Eater, and said, “Imperio.”
Amycus got up, walked over to his sister, picked up her wand, then shuffled obediently to Professor McGonagall and handed it over along with his own. Then he lay down on the floor beside Alecto. Professor McGonagall waved her wand again, and a length of shimmering silver rope appeared out of thin air and snaked around the Carrows, binding them tightly together.
“Potter,” said Professor McGonagall, turning to face him again with superb indifference to the Carrows’ predicament. "
― J.K. Rowling , Harry Potter and the Deathly Hallows (Harry Potter, #7)