“There, in a clearing surrounded by towering trees, lay a sparkling silver pool. Even from a distance, I could tell that it wasn't water, but something more rare and infinitely more precious.
...
He crouched by the pool and cupped his hand to fill it. He tilted his hand, letting the water fall. 'Have a look.'

The silvery sparkling water that dribbled from his hand set ripples dancing across the pool, each glimmering with various colours, and- 'That looks like starlight,' I breathed.

He huffed a laugh, filling and emptying his hand again. I gaped at the glittering water. 'It is starlight.'

'That's impossible,' I said, fighting the urge to take a step toward the water.

'This is Prythian. According to your legends, nothing is impossible.'

'How?' I asked, unable to take my eyes from the pool- the silver, but also the blue and red and pink and yellow glittering beneath, the lightness of it...

'I don't know- I never asked, and no one ever explained.”