[Steven could have expected a glazed look if he had tried to explain this a few weeks ago, but Christine has been making an effort now to focus when people are talking to her, to try to pick up on the details she needs to keep people safe.

The gem certainly seems to be one of them. She stares at the diamond with wide eyes, and then looks up at Steven with a soft frown.]

So... you're half human and half gem, because your mom was an alien, sort of? ...How did you end up getting her gem? Wouldn't she need that to survive?