"What the…?" Michael's jaw dropped in disbelief as soon as he stepped into the corridor.
The others quickly gathered beside him.
Each of them had a similar reaction to what they saw.
The basement beneath the Overlord's estate was a laboratory.
A vast laboratory — perhaps even larger than the mansion grounds above.
Rows of glass tubes stood tall in neat lines, each one big enough to hold a person, though whatever things had been inside them were not people.
And they were long gone.
Some tubes were smeared with strange iridescent stains as if something had melted against the glass.
There were also separate rooms with reinforced iron bars resembling prison cells. And judging by the claw marks on the interior walls, these cells were meant to hold something captive that shouldn't have escaped this place.
Kang breathed in sharply. "They were… experimenting on Spirit Beasts here."
Of course.
It was so obvious now.
