The Rings of Hesaurun Book 3, The Dreamer

The Dreamer, the gripping third installment in the Hesaurun Rings series, continues the saga of Valerie Dunne, who fled her enemies by journeying thousands of years into Earth’s primeval past. Though she lived out her days in the prehistoric world, her promise is fulfilled as she reappears in the twenty-first century, reborn as the formidable Master of the Five Rings of Hesaurun.
When Marine One emerges from the morning mist, it whisks her to the White House on urgent summons. There, Valerie learns the anticipated presidential dinner masks a far greater event: a startling revelation of first contact. In an instant, she is thrust into the eye of a political storm that threatens to shatter everything she has fought for.
Time is running out while alien forces systematically plunder star systems on their relentless approach to Earth. While all sides struggle to consolidate power, she must rally herself and Earth’s fragile new alliance as the eyes of the galaxy watch with hope and fear.