With the genius of Dr. X, and a lots of help from our Brainers, the Red Mage was able to substantially improve the design of her tower. This tower has upgraded Brainer capacity to 8, and has a lot of additional functionalities: Mainframe, Biotech, Surgery, Power Plant.
In addition, it can conceal our Hideout from sight (counts as 3 Shrouds) and lash out with powerful bolts of Mind energy at any invaders who weren't fooled by this.
This facility requires Necronomicon, which can be obtained by dismantling the Red Tower.