His skin was the color of wet ashes.
He had to step over the wet ashes.
Now it was wet ashes in a green place.
The air in his lungs begins to feel like wet ashes, and he can't expel it.
Repeat this process several times until you're left with smoldering wet ashes.
He stirred his foot in the wet ashes and slowly said what he had to say.
The base was contained at one end of a long box holding what appeared to be wet ashes.
At the opposite end, between the tube and wet ashes was another slab of compressed carbon.
Luke scraped the wet ashes away, down to bare soil.
It had eyes like embers, glowing red-hot in a face the color of wet ashes.