When the threshold between worlds begins to fade, Keabhen Conway is thrust from her realm into the stagnant twilight of Tir Na Nog. To halt a spreading corruption, she must reclaim the legendary Sword of Light and restore balance to four ancestral cities of the Tuatha De Danann.
But Keabhen’s greatest obstacle isn't the monsters in the shadows—it’s the crushing weight of a prophecy she feels unqualified to lead. Guided by the mysterious Sidhe, she must navigate from a disconnected outsider into the savior Tir Na Nog demands.