"They are. My working theory at this point is that they intend to sufficiently anchor their realm of Oblivion to Nirn, and then use those anchor points to drag the world into that realm, and their master's grasp."
Other options:
no subject
"They are. My working theory at this point is that they intend to sufficiently anchor their realm of Oblivion to Nirn, and then use those anchor points to drag the world into that realm, and their master's grasp."