It did not, as he had feared, crumble into dust.

"Because you can't say it straight without crumbling into dust!"

Along the whole half mile the Wall was crumbling into dust and gravel.

But that first draft of history is now crumbling into dust.

And they were crumbling into dust before his eyes.

As he finished, it crumbled into dust in his hands.

A breath, and the whole would have crumbled into dust.

He ran his hand through the air above it and the corpse crumbled into dust.

The alliance we've worked hard and long to build will crumble into dust.

The man collapsed to the ground and crumbled into dust.