A teenage smuggler, a devastating illness, what will she sacrifice to save the survivors?

Being tiny and tough helps Mouse smuggle valuables between a series of caverns constructed beneath Earth's surface. Cut off from the rest of the caverns, the bottom level relies upon her trading.

When sickness strikes, she must climb to the top, but instead of getting the vitamins they so desperately need, she brings the Company's wrath down upon her community.

Hunted. Guilty. Devastated.

Her only recourse is to do the unthinkable — sabotage the infrastructure of the caverns.

Mouse must become the villain to be a hero.