Slender discussion

The ONLY weapon that can truely kill a Slender is the Slender Sword, which will come when we start the Quest(view spoiler)[23 map pieces, written on the flayed skin of Slender victims, and drawn with their blood, unite all and they'll form the map to there the blade lies (hide spoiler)] however, Dimond Swords can dispell them, guns are no use as bullets will bounce off, kitchen knives will stun them, as will silver bullets.