Cash Cassidy's life in Wales can't compare to the thrills she experienced in El Dorado. Now, the reality of a pregnancy results in that familiar restlessness and an urge to flee. While attending a book launch party, Cash wants to start a new book, and jet off on a research adventure, but her agent, publisher, and husband want her to stay home and not write books! So Cash researches Pat Cassidy, her ancestor who fought at the Battle of Vinegar Hill. Tim feels this is a harmless genealogy project that will keep her at home, but Cash sneaks away to the Irish Sea. On her journey, Cash bumps into some friends. Through them, Cash meets Inga, who sings a song about the goddess of women of her Viking ancestors who had a magical Falcon Cloak that enabled her to fly to any world-and between worlds. Inga's song sparks a new adventure quest for Cash.