Across
- 2. hypothesis
- 8. strange
- 9. eerie
- 11. receive from previous holder
- 13. ghostly
- 14. watch something very carefully
- 15. look into
- 18. funny
- 19. uncommon
- 20. proof
- 21. extraordinary
Down
- 1. studies human histories
- 3. trick
- 4. puzzled
- 5. finding answer
- 6. legend
- 7. student of history
- 10. show something true
- 12. soul
- 16. found
- 17. vanish
- 22. extraterrestrial