Gulu gulu...
A large number of bubbles appeared in the lava beneath the fortress, and the Imperial Army noticed this change.
Carlos smiled, the situation was proceeding according to his planned strategy.
"After waiting for so long, it's finally ready, Anna, go ahead."
Carlos seemed to be speaking to someone unknown.
"Okay."
A ethereal female voice came, and it seemed that there was an invisible woman near Carlos.
After about a few dozen seconds, the bubbling lava beneath the fortress stopped churning and began to solidify.
Crack, crack.
The solidified lava cracked, and these cracks were not chaotic but formed a chain of a large-scale alchemy array.
Rumble, rumble, rumble...
The ground within several kilometers began to shake.
Boom!
The solidified lava layer shattered, and hotter lava gushed from the cracks in the lava layer, spewing outwards like fountains.
Gulu gulu...
The lava flowed down the slope, and the Imperial soldiers not far from it immediately retreated.
