Chapter Sixteen They must have walked two or three miles in their snowshoes, Carl estimated. His nose, fingers, and toes were numb from the cold, in spite of the exertion, and his face smarted from the steady, chill wind. His mind was also spinning from the effects of the invisibility spray. One moment he was on solid ground, the next it seemed like he was stepping into eternal nothingness. Keeping track of the other two was also hard. Every few minutes they would all speak to indicate their location and move closer if they’d drifted too far apart. Harrington had coated three weapons with the invisibility spray and handed one each to Carl and Makey, emphasizing that they had to take special care to know what they were shooting at to avoid shooting each other. She’d also pointed out that