Board Thread:Lore Discussion/@comment-16047389-20140618150648/@comment-24015369-20170403002832

The ability of creation black soulgems is by its own enough evidance that Mannimarco, God of Worms still exists, lets not act upon headlore and see the evidance in the game, it is written in the book that Mannimarco IS infact the Necromancer's moon.

All the evidance you need is written in The Necromancer's Moon book, which is a canon book you can find and read in the game, the developers clearly intended this, and I believe  Mannimarco, God of Worms, not the King of Worms this time, will appear in the next elder scrolls installments, whether as an enemy or a friend or neither I don't know, but he will for sure.

Now, this is only speculation of mine, but I believe that the Necromancer's moon itself is Mannimarco's phylactery, it makes perfect sense if you ask me, as it's his soul that's communicating with all the necromancers on Mundus.