Pretending not to know

Jiang Chen had two choices.

One - capture her then use truth-telling serum to obtain some intel from the beautiful spy's mouth and discover her identity. But then the opponent would know that he did, in fact, know about the Golden Apple. Jiang Chen believed that she definitely had some technology hidden somewhere; it didn't take advanced technology to hide a telecom device in her ear canal.

Two - pretend to know nothing and just let her go. Even if he didn't find out her identity, he would no longer be a suspect.

Reveal his card and declare war or keep his card hidden?

Jiang Chen only wavered for two seconds before he chose the latter option.

Because if he chose the former, he couldn't do anything to them without a proper intelligence group, even if he knew the opponent's identity.

The battle lasted for two more hours as Jiang Chen almost made the beautiful spy's bones collapse before he finally spared her from her pleading and agony.