You should provide facts but you should take some story out from make-up of it or personal stories to attract the reader.So personally i think it is False.
In a cave ? because thats where they are in the movies and in real life.
Simile you know when an author is using simile because they use like or as so in this case...
“Like stew beef vibrating the drum head near the edge with his fingers” hope this helps :)
