Theory:

Meanings of difficult words:
 
Numbers
Word
Meanings
1.
Swept To destroy or take along the waves.
2.
RecedeMove back.
3.
DazeUnable to think or react properly.
4.
TraumatisedA result of a disturbing experience.
5.
WhirlpoolsA quickly rotating mass of water in a sea.
6.
Triggered Activated by an action.
7.
HystericalWildly uncontrolled emotion.
8.
ForewarnedPrewarn.
9.
Slammed Bang forcefully.
10.
Eyewitness Onlooker.
11.
Disaster Tragedy.
12.
Carcasses The dead body of an animal.