The Seventh Mountain and Sea was coming!
The entire army didn't arrive immediately. However, the first wave of invading cultivators immediately began to reinforce the rift between the two Mountains and Seas.
That gap was how they could enter the Eighth Mountain and Sea, and as soon as they appeared, they began to set up numerous spell formations, almost like garrisons. They also attacked the rift itself in an attempt to open it wider.
Even more impressively, a large group of Seventh Mountain and Sea cultivators joined forces to summon an enormous nine-headed dragon. It was pitch black, and when it roared into the gap, it began to grow in size, causing the rift to rip open wider and wider.
Winds screamed, echoing out through the entire Eighth Mountain and Sea, carrying with them the voice of the Lord of the Seventh Mountain and Sea.