I think I read a review saying this was a ridiculous premise taken seriously and I agree with that. It was just a fun read. Pacing was great, the characters were interesting and weren't safe. The action was fun and quick, described well such as (spoiler) when a T-Rex shows up and a young woman is eaten, she thinks she's being shoved from behind by a would be rescuer only to find out the "body hug" was from 9 inch long teeth closing around her. The description "she felt the worst incontinence as her organs fell free" got me. I'm paraphrasing but you get the idea. Definitely worth the read or audio book listen like I did.