4✨Another book that has been on my list forever. Cassie is our main POV, a teen in high school, before the 1st Wave in an alien attack on the planet. Her family manage to escape several of the waves until they get split up. It turns into who can you trust. There is a little romance, family ties, and working on taking their planet back. It was really good, there was real danger for the characters. It was a bit predictable. Plus lots of characters.