The book is somewhat interesting. I believe there should have been more back story leading up to the invasion or invitation of the aliens to Earth. ?More of setting the scene sort of. Information about the culture of the aliens would have been a plus.
The sisters seem strong and intelligent, but the arrogance highlights the privileges of certain humans. The absence of absorbing your environment and out right temper tantrum of the females.? There is a difference in how humans of different ethnicities engage with one another, so there should have been more dynamic between the main characters. One minute she is saying no, then the next it is yes yes yes. ??
Time moves differently cause the younger sisters are aging pretty fast??? The book was just missing a lot. Listening to the next book would probably be lacking…????