Jenya has spent days leading one hundred prisoners to freedom through a tunnel of her own making. She succeeds in her task and is ready to rest, but the arrival of the Sector Guard throws a wrench in her plans to fade away. Green flames pull her back into the living world and the silver eyes of a Kozue Guardsman are the first things she sees when she wakes. As Digger, she is offered a place in the Sector Guard and put through her paces with Flame and Guardian watching carefully. What possible use could her talent for burrowing through rock be to the Sector Guard?