To continue her story, kill Horace, and then return to Anri and don’t tell her anything about him. She will then continue on her journey. You’ll find her next to the church bonfire in Irithyll, where she’ll give you the Ring of the Evil Eye. If you wish to unlock the Usurpation ending, just exhaust her dialogue and continue the story naturally. If you’ve leveled up five times with Yoel of Londor and had Yuria show up at Firelink Shrine, you’ll be able to marry Anri at Darkmoon Tomb after defeating Pontiff Sulyvahn.
Alternatively, after receiving the Ring from Anri, strike the statues in the bonfire room before leaving. One of them is an assassin that will kill Anri. After killing the assassin, you can loot the Chameleon spell of his body. You will encounter Anri again before the Aldrich fight. Right outside of the boss arena, look for a summon sign on the ground that will summon you into her world where you have to help her kill Aldrich.
After killing the boss together, talk to Ludleth at Firelink Shrine to receive Anri’s sword. You can then go back to the Smouldering Lake where you killed Horace to find a now hostile Anri, presumably gone Hollow from the Darksign.
Be sure to check out our Dark Souls III wiki for more tips and tricks.
