01. tight lipped - to have an angry expression.
2. investigate - to try to find out all the facts about something, especially a crime or accident.
3. bunk - leave hurriedly and secretly
4. apparently - something that seems to be true, although it is not certain
5. vanished - to disappear suddenly
6. firm - business organisation
7. solicitor - a lawyer
8. theory - explanation
9. gravel - small rounded stones.
10. chaos - a state of extremely confusion and disorder
11. crooks - someone who has committed a crime.
12. frantically - hurriedly
