John trudged through the muddy backyard, his eyes fixed on the rusty old bike leaning against the shed. He had been waiting for this moment all week. His birthday was just days away, and his parents had promised him a new bike if he kept his room clean for a whole week. And today, he was going to claim his reward. John's heart skipped a beat as he reached out to grasp the bike's handlebars. It was even more beautiful than he had imagined - shiny red and chrome, with a bell that rang out clear and loud. He heaved a sigh of contentment, feeling like the luckiest boy in the world.