I have read the previous book. And the story just went over to this one in a really great way the characters all came together again in this great story, I love them all, Caylin, Andean, Malcolm, jessi, brand brilliant people who are strong and brave, saving the world. Excellent. Look forward to the next one.
This was a really good series but each set can be read on their own, great story and characters and each book brings all previous characters into it, there is still another three books that can be read after these ones, but not essential. Great writing and easy to read.