Dark Shaman: The Lost Treasure by I. T. Lucas — book slip

Eluheed, an immortal shaman, has dedicated his life to protecting sacred treasures hidden beneath Mount Ararat. However, a grave mistake leads to his capture by a Russian mobster and subsequent sale to a mysterious warlord. Trapped on a remote island, Eluheed must use his shamanic abilities to survive under the rule of a master who is not entirely human. Amidst the broken souls in this luxurious prison, he finds an unexpected ally in a resilient woman. As he plans his escape, Eluheed faces a difficult choice: return to his sacred duty or risk everything for a chance at love.

Part of the extensive 'The Children Of The Gods Paranormal Romance' series.