Feels similar to The Cave!
I think this is such a fantastic book idea! I have heard of the catacombs below Paris and there are many theories about them. Teens getting lost and chased by a sinister thing...new boy and betrayal...what more could someone want?
This gives me similar vibes to the movie The Cave but it is teens rather than scientists.
This gives me similar vibes to the movie The Cave but it is teens rather than scientists.