You can now advance to the end of the game by placing each of the “Cinders of a Lord” on the thrones in Firelink Shrine and then examine the bonfire to travel to the Kiln of the Flame.

Depending on the course you’ve taken up to this point you can obtain 1 of 4 endings:

Ending 1: You must have no Dark Sigils or heal the Dark Sigil at the Firekeeper

After the boss lit the bonfire to receive the ending “To Link the First Flame”

Ending 2: You must have given the Fire Keeper Soul and Eyes of a Fire Keeper

After the boss summon the Firekeeper to receive the the ending “The End of Fire”

Ending 3: You must have given the Fire Keeper Soul and Eyes of a Fire Keeper

After the boss summon the Firekeeper, but strike her before she finishes the ritual

Ending 4: You must have gained all 8 Dark Sigils

After the boss lit the bonfire to receive the ending “The Usurpation of Fire”