But Seth the Evil One, their brother, envied Osiris and hated Isis. The more the people loved and praised Osiris, the more Seth hated him; and the more good he did and the happier mankind became, the stronger grew Seth's desire to kill his brother and rule in his place. Isis, however, was so full of wisdom and so watchful that Seth made no attempt to seize the throne while she was watching over the land of Egypt. And when Osiris returned from his travels Seth was among the first to welcome him back and kneel in reverence before "the good god Pharaoh Osiris".
Yet he had made his plans, aided by seventy-two of his wicked friends and Aso the evil queen of Ethiopia. Secretly Seth obtained the exact measurements of the body of Osiris, and caused beautiful chest to be made that would fit only him. It was fashioned of the rarest and most costly woods: cedar brought from Lebanon, and ebony from Punt at the south end of the Red Sea for no wood grows in Egypt except the soft and useless palm.
Then Seth gave a great feast in honour of Osiris; but the other guests were the two-and-seventy conspirators. It was the greatest feast that had yet been seen in Egypt, and the foods were choicer, the wines stronger and the dancing girls more beautiful than ever before. When the heart of Osiris had been made glad with feasting and song the chest was brought in, and all were amazed at its beauty.
Osiris marveled at the rare cedar inlaid with ebony and ivory, with less rare gold and silver, and painted inside with figures of gods and birds and animals, and he desired it greatly.
"I will give this chest to whosoever fits it most exactly!" cried Seth. And at once the conspirators began in turn to see if they could win it. But one was too tall and another too short; one was too fat and another too thin - and all tried in vain.
"Let me see if I will fit into this marvelous piece of work," said Osiris, and he laid himself down in the chest while all gathered round breathlessly. "I fit exactly, and the chest is mine!" cried Osiris.
"It is yours indeed, and shall be so forever!" hissed Seth as he banged down the lid. Then in desperate haste he and the conspirators nailed it shut and sealed every crack with molten lead, so that Osiris the man died in the chest and his spirit went west across the Nile into Duat the Place of Testing; but, beyond it to Amenti, where those live for ever who have lived well on earth and passed the judgments of Duat, he could not pass as yet. Seth and his companions took the chest which held the body of Osiris and cast it into the Nile; and Hapi the Nile-god carried it out into the Great Green Sea where it was tossed for many days until it came to the shore of Phoenicia near the city of Byblos. Here the waves cast it into a tamarisk tree that grew on the shore; and the tree shot out branches and grew leaves and flowers to make a fit resting place for the body of the good god Osiris and very soon that tree became famous throughout the land.
