"Close your eyes, Baby John," Arjun whispered. "Count to ten."

Baby John wasn’t the hacker. Baby John was the hostage .

ACP Arjun Rathod stared at the file. On it, one word: BABY JOHN .

The real hacker—a ruthless former power-grid engineer named Raghav Sisodia, who’d been fired for corruption—was using a voice modulator and a kidnapped child to throw the police off. Every time they chased "Baby John," they were hunting a little boy.

But Arjun had one trick left. He’d brought no gun. He brought a lullaby.