The darkest hour is often nearest the dawn. The next day after Frederick had written the above letter he received news of the death of his most inveterate enemy, Elizabeth, the Empress of Russia. As we have mentioned, she was intensely exasperated against him in consequence of some sarcasms in which he had indulged in reference to her private life. Elizabeth was the daughter of Peter the Great, and had inherited many of her fathers imperial traits of character. She was a very formidable foe.