Following the explosive, world-changing events of her last adventure, Sienna finds herself waiting in dread for an invasion she knows is coming. When it finally happens, she's left with a participate in a shadow war to hold back the tide of chaos, or let events continue without her interference? Naturally, she chooses to participate in chaos. Enemies become allies, and new betrayals lurk around every bend. Soon, Sienna finds the world changing around her again, and this time, in spite of her best efforts...nothing may ever be the same.