Dance of Death - [Campaign 9, Mission 1]

You need to replay this red level. You kill everyone around the fort, go to Lucretia, get the quest, and run back to the fort. Wait for him to approach (there are two paths near the fort, an upper and a lower). When he approaches the upper path near the fort, run to the lower path and stand right under him. He will head towards the fort, and while he does, quickly cross the bridge and turn right. Then turn right again (down). There will be a magical menagerie. Hire everyone there (40 wolves, 25 greater wolves, and 20 mermaids). After that, you won't have to fear this red guy. Defeat him, then return to the place where you turned right for the first time, but go a little higher and to the left. And then turn left again (down); there will be an artifact merchant. Clear out the creatures near him and get 25 liches. By the way, the castle is right above that. I didn't capture it at first; instead, I went straight for the upper castle and defeated it (which wasn't a problem).

Guys, I have a question! Near Giorgio's castle, there's some kind of descent underground behind the gates – why can't I go down there???