Nemeton. The Hallowed Veil, #1

The year is 3002 B. C. E. For millennia, the Nemeton, a group of clandestine immortal beings, has kept the fragile truce between man and the Fae in the antediluvian world. After six thousand years, the race of men has tired of enduring subjugation under the iron fist of the Nemeton. Kings and peasants clamor and thrones tremble at whispers of war as the Nemeton declares the first Conclave in over two thousand years. As the wheel of the year turns toward Spring and the kingdoms of men and the Fae scramble to submit their most capable champions, a young free-spirited Seraephym named Samsara uncovers a plot to undo the power of the Nemeton.
Amidst her studies of mystical texts and mythical artifacts, she unearths an ancient shadow order determined to dispel the ancient ancestral curse placed upon mankind. At the heart of the nefarious plot lay implications that would brand her own people as heretics. When Sam receives word that she has been chosen to represent her people in the Trials of the Conclave her dream of escaping the confines of her rigid life crumble.
Faced with the apocalyptic consequences of magical war, Sam must choose between her heart's desire for freedom and the destruction of her entire race.