However, before the person could Silen had cast two spells, one of which made chloroform useless on him namely the spell of Oxygen Independency and the second spell to kill his attacker, the powerful spell in his arsenal that he had not used in a long time. This spell was one of the more advanced ones out there and happened to involve wind. Blades of air would if not stopped cleave open his attacker and cause him to fall to the ground in pieces. "Once more, leave."