In a Victorian Ireland of magic, poetry, and rebellion, Ida Jameson, an amateur occultist, reaches out for power-but captures Laura Armstrong, a modern-day graphic artist, instead. When Ida channels Laura into the body of celebrated beauty and Irish freedom-fighter Maud Gonne, Laura falls in love with the young poet W. B. Yeats. Their love affair entwines with Irish history and weaves through Yeats' poetry- until Ida discovers something she wants more than magic in the subterranean spaces between Laura's time and her own. With Laura's Irish past threatening her orderly present, she and Yeats must find a way to make their love last over time, in changing bodies . . . or lose each other forever.