"Ah, it’s not quite that simple. First of all, we need something to destroy it with - Horcruxes are extremely resistant to almost all forms of magical or practical methods we might use. Last time we used basilisk venom, and the sword of Gryffindor - which is impregnated with basilisk venom. But I’m not overly eager to break into Dumbledore’s office so... we need to get a basilisk fang out of the Chamber of Secrets,"