The world knows their darkest secrets. The final battle against Ravana has finally been fought. Just as the Oracle predicted, everything is different. And yet, two worlds are still tottering on the brink of utter annihilation. The deadliest prophecies are aligning, and Kali, the god of the apocalypse, is on the loose. As governments actively hunt the Rakshasas of Venus, and millions of humans succumb to the devastating consequences of Earth's environmental apocalypse, the newest members of the Avatars of Light must ascend to their divine positions to save not one, but two worlds. The time has come for the epic to end, but can Supriya and her beloved allies help humanity rise to the occasion to ensure that it is not, in the end, an epic tragedy? The ultimate culmination of generations of interwoven narratives, BLACK SAPPHIRE is the seventh and final book of the seven book epic fantasy series, THE SITA CHRONICLES.