Chapter 607: Tian Shu's Secret (1)

Tiger Soul Research Institute's sub-base.

In the underground prison.

This was the deepest part of the Tiger Soul Research Institute's sub-basement, and it was also the area with the highest authority. It was dark and humid all year round, and the walls were covered in moss. The air was also filled with the smell of rust.

It could be seen that this place had not been maintained for a long time.

Many old-fashioned light bulbs had almost reached their lifespan limit, and various metal switches and other items were already covered in rust.

Only the cage was still brand new and not stained with dust.

This was a special cage specially made for Tian Shu. The metal railing went deep into the ground, and the floor in the cage was also made of special metal, connecting with the cage.

It was a 360-degree blockade without any blind spots.