The spy looked about her.  She knew Kaku’s power which was famous throughout Egypt, and that it was said to be of the most evil sort, and she feared him.

“It seems that this is a dangerous affair,” she replied uneasily, “and I think that I can guess your aim.  Now if I help you, Kaku, what am I to get?”

“Me,” he answered.

“I am flattered, but what else?”

“After Pharaoh the greatest place and the most power in Egypt, as the wife of Pharaoh’s Vizier.”

“The wife?  Doubtless from what I have heard of you, Kaku, there would be other wives to share these honours.”

“No other wife—­upon the oath, none, Merytra.”

She thought a moment, looking at the wizened but powerful-faced old magician, then answered: 

“I will take the oath and keep my share of it.  See that you keep yours, Kaku, or it will be the worse for you, for women have their own evil power.”

“I know it, Merytra, and from the beginning the wise have held that the spirit dwells, not in the heart or brain or liver, but in the female tongue.  Now stand up.”

She obeyed, and from some hidden place in the wall Kaku produced a book, or rather a roll of magical writings, that was encased in iron, the metal of the evil god, Typhon.

“There is no other such book as this,” he said, “for it was written by the greatest of wizards who lived before Mena, when the god-kings ruled in Egypt, and I, myself, took it from among his bones, a terrible task for his Ka rose up in the grave and threatened me.  He who can read in that book, as I can, has much strength, and let him beware who breaks an oath taken on that book.  Now press it to your heart, Merytra, and swear after me.”

Then he repeated a very terrible oath, for should it be violated it consigned the swearer to shame, sickness and misfortune in this world, and to everlasting torments in the next at the claws and fangs of beast-headed demons who dwell in the darkness beyond the sun, appointing, by name, those beings who should work the torments, and summoning them as witnesses to the bond.

Merytra listened, then said,

“You have left out your part of the oath, Friend, namely, that you promise that I shall be the only wife of Pharaoh’s Vizier and hold equal power with him.”

“I forgot,” said Kaku, and added the words.

Then they both swore, touching their brows with the book, and as she looked up again, Merytra saw a strange, flame-like light pulse in the crystal globe that hung above her head, which became presently infiltrated with crimson flowing through it as blood might flow from a wound, till it glowed dull red, out of which redness a great eye watched her.  Then the eye vanished and the blood vanished, and in place of them Queen Neter-Tua sat in glory on her throne, while the nations worshipped her, and by her side sat a man in royal robes whose face was hidden in a cloud.