“That doesn’t make sense. Why should you be able to come from so far away—another world, another star system—and eat our food?” “Haven’t we had time to learn to eat your food?” the ooloi asked. “What?” It did not repeat the question. “Look,” she said, “how can you learn to eat something that’s poison to you?” “By studying teachers to whom it isn’t poison. By studying your people, Lilith. Your bodies.”