It's Butcher's uniquely haunted perspective on the region that lets the brutal realities of the landscape eclipse the story of its most famous son. The result may disappoint seekers after a mere biography of Princip (but hey, details on the man's life are scant enough to where such seekers should be used to disappointment -- but should be delighted by Butcher's encounter, early in the book, with Princip's modern relatives, who cherish a sort of folk memory of their famous great-great uncle that is, as far as I know, all new-to-us material), but readers who can get over that small disappointment will still be rewarded by a remarkable book.
Butcher was a journalist on assignment in the Balkans during the horrific conflicts that broke out after the Warsaw Pact gave up the ghost and the nation of Yugoslavia (the name means essentially, southern Slavs, implying a union of same that might have been dear to Princip's heart, though one wonders what he'd think of Tito as a replacement for the Hapsburgs/Ottoman Turks/etc) dissolved into bloody ethnic conflict. As he follows Princip's journey from his poor and remote home village to Sarajevo, Belgrade and back to Sarajevo, Butcher can't help but recall how the vistas he encounters and the people he (re-) connects with in 2012 looked back in the 1990s, even as he tries to imagine his way back to the early 1910s.
This sounds like a recipe for maudlin mourning or peacenik preaching, but Butcher doesn't let either flavor spoil the dish. For every scene of survivor's guilt or tragic and harrowing story behind a destroyed building or a desecrated monument, there is a scene of enduring charm (Fishing with the Imams) or of newly adopted, moving and meaningful rituals (the march commemorating the escape of thousands of Bosnian Muslims from Srebrenica).
The result is a difficult but rewarding read, and one I would recommend to absolutely anyone.