In ancient times, the [Black Flesh Mountain] was crafted at the expense of the Elder Race's utmost effort and blood.
At the final moment of the London game, it served as the carrier, shielding against the risks of inter-dimensional crossing, successfully transporting all personnel back to the original world.
It was firmly rooted in the deserted area where the original London stood.
The Flesh Mountain that underwent dimensional transfer lost only a few large chunks of meat, some areas flattened and scorched, yet its overall structure showed no signs of instability.
However.
For the Human Expeditionary Army stationed within the Flesh Mountain, the experience was by no means pleasant.
This was the ultimate nest of the Shoggoths. It relied on the domains maintained by several squad leaders to counteract the pinnacle of putrid contamination while simultaneously preventing lethal plagues from infiltrating.