The monastery of Princess Aebbe has eluded researchers for almost 1,200 years. That’s because a band of Viking raiders demolished all traces of the religious landmark in the 9th century. But now, against all the odds, a team of experts has finally uncovered the remnants of this long-lost settlement. Yet as the diggers continue to sift through the ruins, they stumble upon a sinister sight. There, among the debris, is a cache of butchered bones... How did they get there? And what could they mean?