Wed in an arranged marriage to a man nearly fifty years her senior, sixteen-year-old Eileen O'Connell goes from being one of five unmarried sisters to become the mistress of Ballyhar, the great estate of John O'Connor, one of the wealthiest and most influential men in Ireland.

When O'Connor dies suddenly seven months into their marriage, Eileen must decide whether she will fulfil her brother's strategic goals for her family by marrying her late husband's son.

Headstrong and outspoken, Eileen frustrates her brother's wishes, as, through the auspices of her uncle, General Moritz O'Connell of the Imperial Austrian Army, she, along with her ebullient elder sister, Abigail, spend the ensuing richly-dramatic and eventful years at the court of the Empress Maria Theresa in Vienna.

The sisters learn to navigate the complex and frequently contradictory ways of the court, and succeed in making a place for themselves in a world far different from remote Derrynane. Together with the general, they experience a complex life at the pinnacle of the Habsburg Empire.

Derrynane and the three books to follow, which will together constitute The Derrynane Saga - promise to be an enthralling series of historical novels, presenting a sweeping chronicle, set against the larger drama of Europe in the early stages of significant change, dramatising the roles, which have never before been treated in fiction, played by a small number of expatriate Irish Catholics of the fallen "Gaelic Aristocracy" at the courts of Catholic Europe, as well as relating their complex, at times dangerous, lives at home in Protestant Ascendancy-ruled Ireland.

In addition to Eileen's, the books trace the largely-fictional lives of several other O'Connells of Derrynane, it is the tantalisingly few facts that are historically documented about them which provide the basic threads around which the tale itself is woven, into which strategic additions of numerous historical and fictional personalities and events intertwine seamlessly.