The Age Of Ra by James Lovegrove

When powerful, seemingly divine beings from Egyptian mythology suddenly manifest on Earth wielding advanced, devastating technologies, humanity is thrown into chaos; a small, determined group of investigators, soldiers and scientists scramble to uncover the entities’ true nature and motives, racing across a world reshaped by fanatical worship, political collapse and high-tech terror, while the novel fuses myth, science and conspiracy into a tense action-driven exploration of power, belief and what it means to resist forces that appear godlike.