I approach the cave, and I see a lake nearby, with these Satanists around it, and a whole horde surrounding them. I thought, I blessed the warriors and said, "I'm sneaking up on them. Inquisitors, attack the demons; they will run towards you, and the archangels will help you." So, the demons leave the Satanists unprotected, I go around to the back and fight them.

Your plan works perfectly. You appear before the Satanists, but they are very strong. One summons a unit from Sheol, a portal opens, and a succubus crawls out. She shoots at you. Taking advantage of the fact that you are distracted by the succubus, Satanist #2 casts Magic Fist on you, dealing -30 HP, but an angel, appearing out of nowhere, slays him. What do you do?

I'll go for a walk... around the city... but first, I'll put on a hood and hide the Lich's staff...

You walk, it's raining everywhere, the beauty of nature, water, a giant Kersyls tree, on which the elven city stands, sunlight shining around you. Suddenly, a Ranger stops you: "Sir, who are you? I haven't seen you before, and why do you smell like death?"