The subject line covers it. I have the seal. I'm in the Black Spire fortress. I know I need to insert the seal into the fresco somehow, but the fresco only makes a comment about its design (as it did before I had the seal and visited), and doesn't ask me for the seal.
I've visited Erika, and she didn't ask me for the brooches, so I still have those, but I have the ritual, demonslayer, and every other quest completed (except Chevyn).
What am I doing wrong, or missing?
Please help.
Thank you!