Foster, lying on his back on the lake bed with his eyes closed, feels... something touch his face. A light something--scattered, thin, speckling. Gritty? Soft?

He opens his eyes.

And gets sand in them for his trouble.

He also sees Ginko, though, before he has to shut them against the falling sediment--or rather, he sees two tall shapes, and white, and a hazy figure, and that's all he needs in order to reach out and grab one of those long, deerlike legs with one hand.