The Horn of Roland — Ellis Peters

A famous composer's post-WWII homecoming is marred by death threats in a gripping tale of suspense from the Edgar Award�"winning creator of Brother Cadfael.
 
Three decades ago, a teenaged Lucas Cornith joined the Austrian Resistance, helping to lead escapees from German oppression across the Alps to Switzerland and safety. But when Hitler's storm troopers got too close, Lucas fled his homeland, leaving his compatriots behind to face the Nazi's wrath.
 
Many years later, Cornith is returning to his hometown for the first time since the war's end. Now a world-renowned classical composer, he's premiering a new musical work, The Horn of Roland, at a festival in Gries-am-See, the tiny Alpine village of his birth.
 
But not everyone wants to welcome him home with open arms. Someone here refuses to forgive and will never forget the past. And unless Cornith can unmask his mystery antagonist in time, the premier of his new composition might well be the composer's swan song.
 
The Edgar, Agatha, and Gold Dagger Award�"winning author of the Brother Cadfael medieval mysteries and “beguiling writer” perfectly blends intrigue and suspense in this novel of a man haunted by his past (The Daily Telegraph).