Processing deathrot isn't complicated. Just plant it in the ground and it'll gather up it's own nutrients from careless small critters and itself.
Also, you can't teach magic. While you know "pure" magic, and you can tell it to people, you can't teach it to someone. Besides, it has to be born.
Currently, there's no real way to know if somebody is going to be a mage or not. Two demi-gods in regards to their power will probably still give birth to a simple child.
The parents usually bear no ill will against their child for it. However, there IS a lot of attention to magi. The local churches and other private parts will often take the child away from their home to keep them safe and teach them properly.
The privileges to see their family differs from place to place.
Also, going back to your current plan. You decide to try and get two birds with one stone. You want to go after the guard general.
A brilliant strategist, and a very pleasant man to train with, he is very popular. He should be perfect.
However, you have no plan for it. How are you going to do this? Also of note, the alchemist is currently unconscious. You know how torture him very efficiently, using your slow poison and your voice.
There's a city that's bigger nearby, but they have HEAVY checks against demons. The Cathedral is a nasty place for your kind.
So if you go there, have a plan ready.
Name: "Huruthil"
HP: 15/15
Fatigue:25/25
Host: Mongoose
Status:Enjoying another excellent host.
Ways of doing damage: Stabbing people, and any other things a basic human can do.
Evil: 11/12
Cult members: 15
party: 2 cultists.(away)
Underlings :goblin tribe.
Inventory+spells
Huge dull axe (floating inside of you. Not visible to anybody, as you have a minor bit of hammer-space due to the increased cult, also you still need to equip it before using.)
Illusion
This is a shitty update.