Still reeling from the deaths of her friends and the revelations of the Ethics Committee’s machinations, Saki returns to the village expecting the worst. However, what she’s learned so far barely touches on the edges of an even vaster conspiracy. As she discovers the fate the committee intends for her personally, she realizes that her own mind is being turned against her.
With her memories of Shun fading, she and Satoru find themselves in a race to find Maria and Mamoru before the Committee condemns them to destruction. But the clock is turning against them in more ways than one, as the smoldering conflicts between the rat colonies threatens to erupt into open warfare. As pivotal pieces in a deadly endgame designed to wipe an entire species from the face of the planet, it’s not going to be enough for Saki and Satoru to merely survive. To lead the best laid plans of both rats and men astray, they’ll have to uncover the final secrets to two hidden worlds and turn them against their makers!