Speak to Tanith only if Rya: gazebo talk and Boggart: Rya's Necklace, both in the South Liurnia section, are done. If you join first, Boggart stops dealing with you for this cycle, and his Boiled Prawns and Boiled Crabs go with him. If you missed them, leave now: touching the grace here locks nothing, so long as you speak to no one in the Manor. Joining also moves Patches off the mountain, which ends Patches: Gelmir kick in the Mt. Gelmir section, and it ends Recusant Henricus's invasions, which the Stormhill section took long ago.