I truly can't say much more about "Vortex" by S.J. Kincaid other than the fact that is one of the best books I have ever read! It is right next to Insignia, and I hope Catalyst! The entire series is like nothing I have ever read for more! S.J. Kincaid is an amazing author and her books have just wrapped me up into the whole world of Insignia! Well, back to the main point: "Vortex". Outstanding. Absolutely amazing. I don't want to say anything about my favorite parts because I would spoil things! But, it was so action packed that I couldn't put it down! An AMAZING book! I 100% recommend this book to anyone and everyone!