Board Thread:Lore Discussion/@comment-193.34.160.16-20150717153103/@comment-6881629-20150718140556

Traveled over from Nirn at some point the Shivering Isles isn't one of the realms thats fully closed off to mortals, so would be reasonably easy to get to (in relation to the others anyway). Creating mortal life isn't really something a Daedra would do.