Well, now I need to guard the teleporters. One is two-way, leading to the Necromancer's castle, and below it are two more two-way teleporters (quite a hassle). The second teleporter is one-way, and the entrance is located near me, and so many people have come through it... it's like a public thoroughfare, honestly. Maybe it has many entrances and exits, one of which is near me (and one entrance is also near me).
The main thing is not to let anyone through the teleporter that leads to the swamp castle and the human (new) castle. Also, on that territory, there is a teleporter to my main infernal castle, which is located in the rear. It's crazy.