chunk: explains his situation. They meet with the underground group that leads them to the periphery of the city. Logan finds that the ankh symbol is actually a key that unlocks an exit from the city. They come out into a frozen cave, with Francis following closely behind. In the cave, they meet Box, a robot designed to capture food for the city from the outside. Logan discovers to his horror that Box also captures escaped Runners and freezes them. Before he (Box) can freeze Logan and Jessica, they escape, causing the cave to collapse on Box.