Worshipper – “Betrayal” [2nd campaign, 1st mission]

I didn't spend much time on the walkthrough. There's no rush, so I head towards the demon tower, take a detour, then head to the keymaster, go through the portal, and into the dungeon... Here, I take a break because of the familiar landscape. I gather troops and upgrade them in the fortress on the hill. Then, with a large army, I defeat Erathial.