It is clear that Nefer-ab suffered from asthma, that he believed it had been inflicted upon him by the local goddess for some sin he had committed against her, and that he further believed his penitence and cry for help to have induced her to come to him and cure him. And this goddess was a snake. Here, in the necropolis of Thebes, therefore, the snake played the same part as a healer that it did in the worship of Asklêpios. It will be remembered that the first temple raised to Æsculapius at Rome was built after a plague, from which the city was supposed to have been delivered by a serpent hidden in the marshes of the Tiber. The serpent that destroys also heals; by the side of Kakodæmon there is also the good snake Agathodæmon. Mert-seger, the serpent of the necropolis, did not wholly escape the patronage of the State religion. Like the local cults of aboriginal India over which Braḥmanism has thrown its mantle, the cult of Mert-seger was not left wholly unnoticed by the organised religion of the State. A chapel was erected to her in the orthodox form, and it is from this chapel that most of the stelæ have come which have revealed the existence of the old worship. In some of them Mert-seger is identified with Mut, or even with Isis; but such an identification was never accepted or understood by her illiterate worshippers. For them she continued to be what she had been to their forefathers, simply a serpent and nothing more. The old faith has survived centuries of Christianity and Mohammedanism in a modified form. Professor Maspero discovered that the local Mohammedan saint, whose tomb is not far from the ancient chapel of Mert-seger, is still believed to work miracles of healing. He has taken the place of the serpent goddess; that is all.(169)