I loved this story and I loved it because it's a family story with sci-fi elements. It's a family story that analyzes how a family can be torn by the disappearance of a member and how each of those remaining will react.
Kass, Jacob, and Evie are the siblings at the center of the story. Kass and Evie are still suffering from the aftermath of Jacob's disappearance, Jacobs is somewhere in the Universe fighting an intergalactic war till something happens and he comes home (to the Earth).
Nothing will be the same, a lot will happen and may the old wound will be healed or the Earth will be destroyed.
I wasn't a fan of Kass or Evie at the beginning of the book: they seemed a bit obsessive and lost in their world, Jacob seemed easier to like till you realize he left his family behind without even say goodbye.
There's a lot of character development and the arc of each character will improve and change them.
I liked the mix of the two genres and I found it well done. The plot is fast paced and I was engrossed in this riveting and entertaining story.
Highly recommended.
Many thanks to MIRA and Netgalley for this ARC, all opinions are mine