October Challenge - "The alarm wasn't supposed to go off yet."

"The alarm wasn't supposed to go off yet. That's what Sebastian thought when the sharp sound cut through the air. He still had time. He was sure he still had more than enough minutes left. Sebastian blinked a few times at a rapid speed. He pinched himself in his left arm to ensure he wasn't imagining this like you would in dreams. He was pulled out of his slum by the sound that declared the end of this all. How could it be that the timer already had run out? What would happen to him now? He didn’t know the answer. He had never felt so small all his life.

If only he had known this when he got that message on Monday, all this would never have happened. If he had just blocked the number, then his younger brother would still be alive."