Every year, members of Jack's community are invited to meet with the wealthy founders of the Stalk, the living space elevator that casts its massive shadow over every part of her life. Every few years, one of the chosen is a Digger like Jack--who returns to the community only to throw themselves to their death. Jack doesn't want to think about the Stalk. She doesn't want to think about the friends she's lost. But this year, it's her turn-and refusing...