There are deities from each of the worlds in Habolsphere that exist in the Void. They are each given a rating between 3 and 9. That rating is the highest level of spell their clerics are granted while in the Void. All clerics can cast 2nd and below level spells, regardless. That is why the rating system starts at 3. Clerics not listed are assumed to be at the 2 level.
When the book is complete, the entire list is available. Until then, if you have a specific question, or it come sup in game, we will post here.
There will be new deities who only have power in the Void, and deities from some of the other worlds of Habolsphere that aren't familiar.