Terrible! Particularly the completely unbelievable ending. Talk about Deus ex Machina. No wonder the son couldn’t stand the principle character, Armand Gamache, who was a total self righteous twit. It is so unlikely that no one else would have noticed all the faulty engineering associated with this company, GHS. We never did really find out just what the rare earth element was used for other than screws. Finally all the good guys popped up alive and the bad guys were conveniently
killed off. If only things worked out that way in real life. But it just doesn’t except in children’s fairy stories.