Gemina

As in the first book in the series, incredibly and unbelievably skilled and courageous teenagers fight against impossible odds to save ... well ... everything. This story features lots of action, violence, death, and plot twists. The pace never lets up. There is also a bit of young romance.
The audiobook is a very well done multi-voiced performance.
Be warned that the story neither begins nor ends with this book.
4.5 stars.