A meeting or unexpected event
encounter
To save someone from danger
rescue
sighting:
manage to see or observe
A change in the genes or body of a living thing
mutation
panic:
to suddenly feel so frightened
Not containing anything
empty
Something that has been left behind or deserted
Abandoned
evidence:
clues that help us figure out if something is true or not
exist:
to be real or alive
appear:
come into sight; become visible
several:
a number of things
spot:
a particular place or area
UFO:
Unidentified Flying Object
A thin fog or cloud in the air
mist