Seven for a Secret

Who killed the mosaic girl? As Lord Chamberlain, John spends his days counseling Emperor Justinian while passing the small hours of night in conversation with the solemn-eyed little girl depicted in a mosaic on his study wall. He never expected to meet her in a public square or afterwards find her red-dyed corpse in a subterranean cistern. Had the mysterious woman truly been the model for the mosaic years before as she claimed? Who was she? Why had she sought John out? Who wanted her dead -- and...