It happened a moment ago when Soma entered the boss room on the fifteenths floor. The interior was vast and had a cave-like structure, but there was not a single soul in sight inside it.
Soma walked further inside, summoning his gauntlet and sharpening his senses, preparing for what was coming.
The moment he stepped foot in the middle, the ground shook, and the surrounding ground around him began to elevate.
The rock began to form one by one, becoming a regular golem. However, the sheer quantities that were spawned were relatively high.
He counted there were more than thirty inside, and there was a golem towering above another at fifteen meters height; its body was made of black metal, and it shook the ground every time it made a move.