The saga of the fictional Thornleigh family in Tudor times continues in this novel. One need not read the previous books, but one may wish to, in order to enjoy the well-crafted, tightly woven story of an English family's service to England and Queen Elizabeth I.
Isabel Thornleigh's parents serve Elizabeth, in her first year as Queen. Isabel is married to Carlos Valverde, a former Spanish mercenary turned Peruvian grandee. He wants nothing more than to have a position confirmed in Peru, so that he, Isabel, and their young son can live a good life in the New World. They have travelled back to England after years to see Isabel's parents. Once there, Isabel and Carlos learn of the problems with rebellion in northern England (as Mary de Guise, Queen Regent in Scotland and mother of Mary who will be Queen of Scots, seeks to overthrow the Protestant Elizabeth). Carlos is ordered to travel to Scotland to serve de Guise and her allied forces. Isabel meanwhile must undertake a mission for Elizabeth. The conflicts, personal and political, get upped and upped, and even the heroes find themselves forced to commit to things and to do things that are less than admirable.
The characters are well written, the political, religious, and personal conflicts weave in and out of the story, with empathetic understanding given to all sides. One can cheer equally for Elizabeth and the Protestants, as well as for the Catholics who struggle to hold on to their fervent devotion.
This is possible because the story centers on Isabel and Carlos, and their own struggles to make the best political and personal choices.
Read this and then wait for the next one. While waiting, read the earlier books and see the story from the beginning.