A golden ring with the emblem of the double-headed eagle
A coded Byzantine letter from a royal messenger
A book-relic of Orthodoxy

Some unexpected findings in the old church of the village Komnina in Xanthi revive the mysterious legend of the unknown emperor. The few who know about the discovery are forced to keep their mouths shut. Who is behind their intimidation and why has he crossed so many countries to achieve it?
A renowned crime novelist has lost his inspiration. However, a vision reveals to him that reality sometimes hides greater surprises than the imagination he believes he has lost. A sudden phone call from his Byzantinologist friend in Xanthi will lead his steps to Thrace. Thus begins an agonizing search through secret underground passages, catacombs, and well-sealed gates of ancient and Byzantine temples. The two friends are called to recognize the signs left behind by the architects of this underground network, which hides within it the secrets of Orthodoxy and History. The tomb of Isaac Komnenos, the fate of Constantine Palaiologos at the moment of the Fall, and a crown of thorns. But how many of these secrets should be revealed? Their lives are in danger, the Spanish Order cannot allow them to reveal...
A thrilling mystery thriller, set in a historically documented environment

A thrilling mystery thriller, set in a historically documented environment. A relentless chase in the secret catacombs of Thrace. A search in the hidden paths of a history forgotten through the centuries.