Chapter 196: Test Subjects

Inside the secret base under the earth, the mysterious group walked along the corridor into a row of laboratories.

Soldiers in protective clothing occasionally patrolled or led "test subjects" into empty rooms.

Each room was equipped with many devices, tubes connected to large glass containers filled with a solution for nurturing these "test subjects."

Of course, the mysterious group did not dare to enter. They just followed the corridor into an empty room.

At this moment, a man was already sitting inside.

He was wearing a metallic demon mask.

"Elder Joe!"

When they saw the man in the room, all three men in black robes bowed to him and called out.

The three were merely gold card assassins, while Elder Joe was a silver-ranked elder, a rank higher than them.

"Trio Star" is a clandestine assassin organization, the hierarchy of which is incredibly rigorous.

Within their ranks, the silver assassins are members of their outer circle, distinguished by classes from one to three stars, most of

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