But Oscar Burolo's murder would seem to be not just unsolvable but impossible. The magnate was killed on a heavily fortified Sardinian estate, where every room was monitored by video cameras. Those cameras captured Burolo's grisly death, but not the face of his killer. And that same killer, elusive, implacable, and deranged, may now be stalking Zen. Inexorable in its suspense, superbly atmospheric, Vendetta is further proof of Dibdin's mastery of the crime novel.