"Incendio!" he hissed, and Hermione adjusted her grip on her wand and leaned out from behind Draco, flinging a non-verbal expelliarmus past him at the raggedly dressed wizard in the fork at the end of the hallway. He blocked Draco’s spell but couldn’t block hers in time, and his wand went skittering from his hand. He threw himself after it, but Draco’s incarcerous caught him mid-leap and he crashed heavily to the ground, struggling against the tightening bonds.