"Sirin, Allie, and Joss have joined forces with the legendary silver dragon Lysander, the only creature capable of opening portals between the two worlds. But the powerful Lennix clan is following the children's every move and will stop at nothing to capture Lysander. After generations of plotting, the Lennixes -- and their bloodthirsty dragon allies, the Raptors -- are terrifyingly close to establishing a brutal dragon regime on Earth, just like...