With Jack's help, Hawk finally rescued Irene from the trap. Irene looked at the shadow tied aside, filled with anger. She walked forward and took off the shadow's mask, revealing a familiar face.
"It's you!" Irene exclaimed in surprise. It turned out that this mysterious shadow was a police officer from the police station. He usually seemed honest and law - abiding, but unexpectedly, he was an accomplice of the dark forces.
Under the questioning of everyone, the police officer finally revealed some of the truth. He told them that there was a huge secret hidden underground in the steel factory, and this secret was related to the criminal evidence of the powerful people. And his task was to prevent Irene and Hawk from finding this evidence.
"What's the password of that safe?" Irene asked.
The police officer hesitated for a moment, but finally told them the password. Irene and Hawk immediately went to the basement and opened the safe. Inside the safe were some important documents and photos. These documents and photos detailed the criminal evidence of the powerful people, including evidence of their collusion with government officials and evidence of their coercion and bribery of the victims' families.
Looking at these evidences, Irene and Hawk were filled with joy. They knew that these evidences would be the key to completely defeating the dark forces.