Malazan Empire: The Mhybe and the new Warren - Malazan Empire

I am just rereading MoI now and waiting for HoC to arrive and this part of the book is still confusing me. I'm not sure exactly what they did with the Mhybe. They somehow created a warren inside her? I just don't see how they could do that inside a mortal woman, even with Hood protecting her body. Or maybe I'm just missing something?

I know Silverfox had all her plans for the Mhybe and was trying to be as compassionate as she could but I don't see how it all worked in to what happened with the Mhybe and Togg and Fanderay now being on the thrones. And are they just rulers of the warren of the Ay, or does that also include the T'lan Imass? Not sure. Anyways I'd appreciate a bit of clarification if anyone could help me with it. Otherwise I'm going to have to read the sections 5 more times each to get it. *l*

Oh and one more thing. I found what happened with Pannion to be a lot more simple. They created a space for the Omtose Phellack warren inside Burn's own body? So whichever warren she controls. I guess that is Tennes, right?

Its just strange how K'rul is the god from whom all warrens come. But inside his body there seems to be spaces where other beings such as Burn and the Mhybe can have their own warrens. Anyways just a tad confused about the Warrens in general so any help would be appreciated. No HoC spoilers preferably.. *s*