the assassin
I chanced upon a couple posts from last year about the assassin Severian encounters in the Secret House on flood day. I have a possible (if not very specific) solution to his identity.
Once again I think it is tied to a Wolfe deception. I've noted some of his deception techniques, which include putting a clue far out of context in the text, pairing two clues together so you tend to forget the first one, characters making misleading, though true statements and Severian mis-identifying people.
This is something similar in that Severian, who is constantly making comparisons in the text, fails to make an obvious one. In the sorceror's jungle saddle, one of them shows Severian his weapon, a set of blades that fit between the fingers attached to a bar held in the palm. Later, in the ziggurat, Agia slaps him in the face and he loses consciousness and awakes with a torn cheek. He then starts talking about her weapon as though it was something new. He calls it a "lucivee" which has blades hidden between the fingers and a metal bar in the palm. He also mentions rings to attach the thing to two fingers, but surely it is the same weapon as that of the sorcerors.
Others have speculated that Agia is associated with the sorcerors because of the strange symbols she scratches with a coin before Agilus' execution. A juripari ,being a local S. American demon, might make sense as a totem for that group. But I haven't seen anyone connect her to the sorcerors using the lucivee before. Wolfe's trick worked? Perhaps weapons are an important way of connecting Agia with other characters. It all starts with the avern seed.
Agia also uses a crooked dagger in Casdoe's house. And at the Saltus mine she uses the athame (I think) which (I think the appendix tells us) is the "poisoned warlock's sword".
I think the assassin is just a way to tell us that Agia's malice continued, in one form or another, all through the time Severian was on his trip.
-bsharp