She’d lived with Aunt and Uncle Vorthys for two years after her mother had died, attending the Imperial University under their casual supervision. Life with the Professor and the Professora had somehow been less constrained, and constraining, than in her father’s conservative Vor household in the South Continent frontier town of her birth; perhaps because they’d treated her as the adult she aspired to be, rather than the child she had been. She’d felt, a bit guiltily, closer to them than to her real parent. For a while, any future had seemed possible.

Then she’d chosen Etienne Vorsoisson, or he had chosen her… You were pleased enough at the time. She’d said Yes to the marriage arrangements her father’s Baba had offered, with all good will. You didn’t know. Tien didn’t know. Vorzohn’s Dystrophy. Nobody’s fault.

Nine-year-old Nikolai bounded into the kitchen. “I’m hungry, Mama. Can I have a piece of that cake?”

She intercepted fast-moving fingers attempting to sample frosting. “You can have a glass of fruit juice.”

“Aw…” But he accepted the proffered substitute, cannily offered in one of the good wineglasses lined up waiting. He gulped it down, bobbing about as he drank. Excited, or was he picking up parental nerves? Stop projecting, she told herself. The boy had spent the last two hours in his room, tinkering intently with his models; he was due to shake out the knots.

“Do you remember Uncle Vorthys?” she asked him. “It’s been three years since we visited him.”

“Sure.” He finished swallowing his snack. “He took me to his laboratory. I thought it would be beakers and bubbly things, but it was all big machines and concrete. Smelled funny, kind of dusty and sharp.”

“From the welders and the ozone, that’s right,” she said, impressed with his recall. She rescued the glass. “Hold out your hand. I want to see how much you have left to grow. Puppies with big paws are supposed to grow up to be big dogs, you know.” He held up his hand to hers, and they met, palm to palm. His fingers were within two centimeters of being as long as her own. “Oh, my.”