Ning cut the grass around the cart to not let the fire spread to it, but by the time he was over, it started raining and taking out the fire by itself.
Ning then dragged Oly's corpse away from the side of the road to deep within the grasses far away. He had no shovel, so all he could do was let it rot within the glass.
He couldn't take back the corpse for others to see. The questions alone were a thing to avoid in his current situation, not to mention being detained on suspicion of murder.
He made sure to drag the corpse far enough away that no one could get to it by accident. Once he was sufficiently far away, he dumped it into tall grass and stared at it for a moment as the sky lit up with lightning once again.
The husk of the body of the lady was not a sight Ning liked to see. If it was possible, he wouldn't have wanted to kill her. In the first place, it sounded like she was only doing what the soul made her do.