Charlemagne And The Charcoal-Burner

Once upon a time, a king was hit by a storm. He met a poor man who was a charcoal-burner. A poor man led the king to his house. The man gave to a king food and gave him the best place to have a rest. Next morning the weather was much better, the king offered to a poor man money for his hospitality, but the man refused him and didn't take his money... What happened next? Read the story to know!