5. Darkstalker Kaathe
You know that big serpent that appears in the middle of Firelink Shrine about halfway through the game? The one who likes to sleep and eat your items? Well, he's got a chum. First of all this meeting will only be possible if you have never let Kingskeeper Frampt take you to the entrance to the Kiln of the First Flame, where you place the Lordvessel. So yeah, don't do that. Darkstalker Kaathe lives down in the Abyss, which is at the bottom of New Londo Ruins. This place is also home to The Four Kings, one of the hardest boss fights in all of Dark Souls. Good luck beating those dudes. Once they're safely dispatched, and you haven't done anything with Frampt, Darkstalker Kaathe will appear down in the Abyss. He'll take you to the Kiln of the First Flame to place the Lordvessel and also lets you join the Darkwraith covenant. If you love invading players and causing havoc, being a Darkwraith is for you. It allows direct invasion of any player's game via the use of Cracked Red Eye Orbs, with Kaathe will also sell to you for souls.