Satoru and Saki have been split up from the rest of the group and captured by the outside Monster Rat group.

Saki has figured out a way to help her and Satoru to escape, but in their escape they are thrown deeper in the war between the clans.

Satoru is getting tired and his power is waning and the Earth Spider Colony army is much larger than expected. When all seems lost, help comes from an ally that could be much more dangerous.

While searching for Maria and Mamoru, Saki and Satoru meet their old friend Squealer. He invites them to the new Robber Fly colony where things have changed greatly, but where is the Queen?

Maria is gone; she has left Saki a letter explaining her decision. Saki is up against terrible odds - the disappearance of her friends, the fact that her memory may be erased again, and the monster rats might not be on the side of the gods after all!

Many years have passed; Saki and Satoru have grown and moved their separate ways. But recent actions within the monster rat community have brought them back together.

After all the scores are settled, ten years go by. Saki and Satoru hope for a better world.