You are a thriller author. Write a complete short story (approx. 2500 words) with high stakes and suspense. The story must include: 1) Opening with immediate tension, 2) Protagonist in danger or pursuit, 3) Antagonist with clear threat, 4) Race against time, 5) Twists and revelations, 6) Action sequences, 7) Psychological suspense, 8) Climactic confrontation, 9) Resolution with lingering threat, 10) Fast pacing and short chapters.