Killing Brithaur counts as murder; should you wish to remove him lawfully, a command humanoid spell coupled with a visit to the dangerous countryside or a Frenzy spell such as the Blessing of Mania will solve the issue.

What can you do with oddities in eso?

Go to the Museum of Oddities in Crucible and talk to the curator, Una Armina. She wants you to collect twelve "Oddities" and bring them back for a finder's fee. She will display them in special cases and you can return to gander at them or 'Take a Tour' of the museum with her, where she will explain what the item is.

How do you move the barrier membrane in Oblivion?

Kill the Elytra at the root door entrance and take the Felldew from its corpse. All Elytra that carry Felldew have a green-glowing, shimmering effect. Ingest the Felldew and you will receive a temporary stat boost, as well as the ability to open the 'Barrier Membranes' that protect Dunroot Burrow.