The night was unusually quiet as Leon took the last bus home. He had the feeling that the ghosts of this part of town were watching to ensure that no sound disturbed their sleep. There was a narrow, poorly lit path leading from the bus stop to his estate, but the boy was used to it by now. This night, however, he was not walking alone. He felt a disconcerting chill on the back of his neck, as if someone was walking a step behind him, though each turn he made revealed only an empty, misty space. The next morning, the school rumbled with gossip. Milena from Leon's class had disappeared without a trace. Her friends were crying in the bathroom. Pupils whispered something about strange signals being sent from her phone at three o'clock in the morning, and the headmaster ordered an alarm. Leon, although he was not close to Milena, felt he had to do something. For the past few months, moreover, he had felt .... different. It was as if something unusual pulsed under his skin, something that appeared whenever he was stressed or angry. After lessons, when the school had deserted, Leon sat in the biology room where Milena had last been seen. He closed his eyes, trying to focus on that feeling that kept him awake - the spark that sometimes flashed under his eyelids. Suddenly, everything around him sank into a strange orange glow. His senses sharpened like never before - he could hear the teachers talking a few rooms away, smell the chalk and old paint, see the dust dancing in the air. But what moved him most was what he saw when he looked at the teacher's desk: footsteps that glowed with a light invisible to others led to a secret compartment under the floor. Leon moved closer to it, hearing his own heart beating faster and faster. When he put his hand on the flap, he felt something underneath move. And then he heard a voice coming from the darkness: "Leon, I knew you'd come..."