With a local guide leading the way, Gu Xi soon arrived at the swamp he had chosen earlier.
Just as the Lich had said, this swamp had originally been the place the Shang Ya line used as their main city.
Beneath the swamp's mud lay a relatively intact foundation.
The moment Gu Xi arrived, he released the Bone-Eating Mud.
In this kind of swamp environment, this type of unit was the most suitable.
After deploying his men, Gu Xi did not immediately place a City Gate here or start building a city. Instead, he released a large number of Mud Head Trucks to occupy the position first.
After that, Gu Xi personally inspected the surrounding situation.
Although Gu Xi was pressed for time right now, when it came to a major battle, he still had to be cautious.
After all, this would not be a fight that lasted only a day or two.
Once the Underworld Battlefield took shape, this place would remain entangled with Gu Xi for a long time.
What Gu Xi needed was not merely a foothold, but a defensive line where he could station forces here long-term.
If he did not lay a solid foundation for many things now and planned to take his time later, it would be too late.
With that thought in mind, Gu Xi personally surveyed the terrain here, using Yellow Springs Dragon Robe's Vision to examine the underground earth veins.
Finally, based on the current situation, he determined the plan for this stronghold.
Gu Xi intended to build the stronghold before him as a fortress-style defensive line.
In other words, he did not plan to drastically alter the swamp before him. Instead, he would make use of every available gap and build small fortresses and medium-sized castles on the original foundations.