The egyptian drama

In the egyptian mythology, Osiris, Isis, Seth and Nephtys were all brothers and sisters. Osiris married with Isis, while Seth married with Nephtys.
But Nephtys wanted a child and she knew it wasn't possible with Seth, supposedly sterile. So it's said she made a soft trap for Osiris and she became pregnant. Isis was upset when she understood what happened, but she loved her sister so she said nothing.
But Seth was in ire when he understood who was the father of the Nephtys' child, Anubis. And like he wanted already to take the power, he decided to kill Osiris. With men to his house, he invited Osiris for a dinner. He made a prize, a sarcophagus, for whom would be able to enter exactly in. Of course, it was in mensurations of Osiris. Which was locked inside by Seth and the men, then throw in the river.
Isis started a research for the body of her husband. She was accompanied by Nephtys and Anubis. It doesn't matter where they found Osiris' body because a way or another, they ended with it in swamps.

Isis hadn't from all times the cap with cow horns on her head, it happened only when she was mixed with Hathor, her daughter-in-law. But she is represented very often with Nephtys having wings at their arms, specially when they are taking care of dead people - like during the judgment of the soul.
For Anubis, he is no longer to present!

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Pharaohs of the sun for V4, on Daz3d
God Anubis, by Summoner (Freedom-of-art)
Sarcophagus, on Most Digital Creations

I added manually the makeup on the characters