"FIRE! SLYTHERIN'S...  I'M ON FIRE!"  Draco shrieked, quickly changing the type of shield he had up, snuffing out the flame to a slight smolder on his outer robes. The air felt oddly cool and moist around them, despite Hermione was pouring molten lava from her wand and laid down a type of fiery moat between themselves and the werewolves. Greyback stopped in his tracks while his minions crashed into each other, the closest ones shrieking in agony as they couldn't stop in time and fell into the molten rock, screaming into silence as the intense heat and fire suffocated them as they roasted live.