"The strange behavior of those cells in your blood," Diya reiterates, although it almost sounds like a sigh. For all that Lapis is fascinating, she doesn't seem to keep up. "The ones that keep forming unstable bonds. It seemed a glaring clue."

But the why doesn't matter to Lapis, and that in turn doesn't really matter to Diya in the end. "With other Lapis Lazulis?"