| Clue | Source | Date |
|---|---|---|
| Where a spy might seemingly vanish | Universal | 04 Apr 2021 |
| Upper atmosphere enthusiast: 'I'm ___!' | Wall Street Journal | 11 Jun 2019 |
| Upper atmosphere enthusiast: "I'm ___!" | ||
| Krakauer book about mountain climbing | ||
| Bestseller by Jon Krakauer | ||
| One way to vanish | ||
| 1997 best-seller with the subtitle "A Personal Account of the Mt. Everest Disaster" |