Initially, the first pages appeared to me like a lecture and so a bit boring art history. But I persevered ... and I was engulfed by the charm of this initiatory thriller. A "real" novel structured, which is played on two periods, the eleventh century and today. Roman thousand years separate the religious Johann, the archaeologist. Strange murders around a secret that are resonant thousand years apart, dangerous and passionate love, a quest for the absolute that transforms beings. We swim there in a frightening and fascinating darkness!