Phase 1 check-in

Six fresh questions. Secure threshold: 5/6.

1. Mina shut the laptop when her brother entered. Best inference?
2. The room was silent except for the clock. Atmosphere?
3. He smiled, but tightened his grip on the key. Suggests?
4. The corridor swallowed her. Best implied meaning?
5. Warm light spilled from the windows. Effect?
6. Strongest analysis of 'rails begin their quiet song'?