Hand Of Isis by Jo Graham
Against the rising power of Rome, Egypt is the last and strongest bastion of the Eastern Hellenistic kingdoms. Charmian is Cleopatra's half sister, daughter of Pharaoh and a woman of the harem. She shares a great honour and a terrible burden with Cleopatra and their sister Iras - they are fated to defend Egypt from those who would destroy her.
So when Roman Julius Caesar comes to Egypt in pursuit of his enemies, Charmian and her sisters are drawn into a deadly struggle.
One that will shape the world to come.
From mysterious temples hidden in the desert to the perilous palaces of Rome, from the tomb of Alexander the Great to the very Gates of Amenti, Charmian must face foes seen and unseen in a battle for her family, her love and her gods.