21 Strange number

Noah was shocked, he continued to glance at the message that had just popped up on his phone screen. It was a simple yet strong threat: "I'm ready for it." Noah tried to decode the identity of the sender and the reason why they sent the message. Sitting across from him, Travis noticed the sudden change in Noah's expression. "What's got you so spooked, Noah?" Travis asked curiously. Noah hesitated for a moment, then passed his phone over to Travis. "Take a look at this message I just received," he said, gazing at Travis's face. Travis read the message and furrowed his brows, just as confused as Noah. "This is strange," he admitted, glancing back at Noah. "What does this mean? Who dares to send this message? Did you recognize the number?" "No, it's from an unknown sender," Noah replied, looking sternly into space. "I have no idea who could be behind this. But I’ll find out" The two brothers discussed who might’ve sent the message, and why the person chose this time to s