The head rolled several feet and blood darkened the stones.

Blood had darkened his shirt to a dirty purple color.

Blood darkened his face as he glared at me.

Paul, sensing something of what lay in the old witch's mind, felt blood darken his face.

She held her left arm in an odd position, and blood darkened the black on her uniform.

Blood had all but completely darkened the glitter of the chest armor he wore.

I watched the blood darken as it sank into the mortar between the stones.

Blood darkened the tiles all around the body.

Indigo blood spilled from the wound and darkened the dirt beneath.

The blood of dead mountain dwarves darkened the blade.