Certainly has a sense of humor.
After pushing enough Thalmor into lava we catch up to Archeron just before he can take his doohickey. The banana puts up a decent fight, forcing me to use all the tools from Lull-Mor to undo his color coded god modes. After hurting him enough he decides to change into his final form(?) which is a giant floating skull and skeletal hands! While the hands are moderately annoying at trying to push me off the many cliffs in this arena, the skulls fireball is the main damage threat. Takes me a short time to identify its weak spot (I've had practice looking for these now) and capitalize on it.
Sofia and I awake in some huge chamber. Llavados and Memory (the girl he wanted us to save, and quite possibly the MacGuffin herself) are here. Apparently she will be a big part in people surviving some sort of catastrophe in the future. He thanks us, says that I've met him before but I don't remember, and sends us on our way. But not before Memory totally kills my winning mood with this line.
What? Why!? How? So many questions...
PS - Damn this was a really good mod! Highly recommended!