In this chapter, Ren tells us that he'd be happy to capture the hostage if he were the one to do it. He's already written a challenge letter to jiang, but now he sees a threatening video on the weibo. Ren thinks it's crazy that jiang has declared war on China. He also thinks that chenjia's popularity on weibo has been growing rapidly. Ren says that if jiang and the others had just posted a short, trashy video on Weibo, it wouldn't be a big deal. Instead, Ren suggests, they analyze the video and find out what message jiang is trying to send. It's not a threat, Ren says, but a series of numbers. Ren compares the sequence of numbers in the video to the nine keys on a nine-key keyboard. If you enter the numbers in order, they will generate a string of nine numbers. They're here.