Related Clues:
- Initially slippery and smooth
- Changing environment
- Shore thing?
- Material melted to make glass
- Sci-fi book set on a desert planet
- Dupin's alter ego in Silk Road city ignoring a character
- You'll find it at the beach
- What gets into a beachgoer's shoes
- Dark horse seen over eastern hill at coast?
- Grains on a beach towel
- *Shallow water hazard
- It's black at Punalu'u Beach
- Material for a fragile castle
- First winner of the Nebula Award for best science fiction novel
- Contents of an hourglass