Fair Helen - Andrew Greig

Elderly narrator Harry Langton looks back on the adventures and friends of his youth, transporting the reader to the Scottish Borderlands at the end of the 16th century...
The much younger Langton returns to his birthplace to aid an old friend, the brash Adam Fleming, who has fallen for legendary beauty Helen of Annandale. He has also, it seems, fallen foul of a rival for her hand, Robert Bell, a man as violent as he is influential. Fleming confesses to Langton that he fears for his life.
In a land where minor lairds vie for power and blood feuds are settled by the sword, Fleming faces a battle to win Helen's hand. By virtue of being the lovers' confidant, Langton is thrust into the middle of this dangerous triangle, and discovers Helen is not so chaste as she is fair. But Langton has his own secrets to keep--and other powers to serve. Someone has noticed Langton's connections to the major players in the Border disputes, and has recruited him in their bid to control the hierarchy of the Border families--someone who would use the lovers as pawns in a game of war.
Packed with swordplay, intricate politics, and star-crossed lovers whose actions could change the course of history, "Fair Helen" is a sumptuous, rousing adventure novel that brings to life one of English poetry's most intriguing heroines.