i've just defeated the four kings, lit the bonfire in front of kaathe, and press A to talk to kaathe, he then ask me about going somewhere and i choose yes. so im at altar, haven't placed the lordvessel yet, talked to kaathe, still no offers on the covenant. also i haven't talked to frampt since i got the item. what shall i do?
You need to place the Lordvessel, talk to Kaathe to return to the Abyss, then talk to him again I believe to get the option to join the Darkwraiths. --- Hello. My name is Inigo Montoya. You killed my father. Prepare to die.
Technically, you can join the Darkwraiths as soon as you exit the Asylum and arrive at Lordran. The point of placing the Lordvessel is to remove the orange fog doors, but the Four Kings aren't restricted by the orange fog. All you need to do is make sure you talk to Kaathe more than once. --- People, especially children, are inherently evil. - Omega Gilgamesh GT: SmokyJoMama
Like stated above, the Lordvessel has NOTHING to do with joining the Darkwraiths. Simply kill the 4 Kings - which you can do at the very beginning of the game. Talk to Kaathe, make sure you answer YES to his question, and you will be given the option to join the covenant.
If you don't kill the Kings until later in the game, make sure you don't speak to Frampt at all. --- Ahh, Republicans and their Conservative Base. Keeping ignorance and myth alive and well in this, the Information Age. Ironic, don't ya think?