How was it with the Devil's Rocks in Lideček

How was it back then? Have you heard it before? How did Rozina, a girl like a flower, reject the devil for a husband? This creature is said to have devised a task for its future husband to turn the Lidečka river in the opposite direction. And as it happens in fairy tales, it was supposed to be until dawn before the "cock crows". However, the merchants also wanted to buy all the roosters in the village that evening. But one clever grandmother refused and the rooster...