22 The tunnel spiraled up, and Scout knew they were heading in the right direction to come up under the city, but it was a slow, lazy spiral that seemed to go on forever. Even through the thickly padded clothing, Scout’s knees were growing sore from all the crawling. The dogs kept racing on ahead, out of sight. Scout would call them back, but each time they returned with greater reluctance. “Any idea where this comes out?” Scout asked. “I’m actually worried that it doesn’t,” Daisy said. “I have more explosives, but I don’t think we could get to a safe distance in time in these conditions.” Scout hadn’t even considered that, that their nice spiraling tunnel could end in another sealed hatch. Or maybe no hatch at all. They might be walled off, an old section no longer needed when the n

