The Demon of Reginhart

Marcus stands in the middle of a world riddled with demons, magic and Kings. Only Marcus is not an ordinary man. He is the only being preventing the demon, Tiecus, and the mage, Asmara, from killing each other and destroying the kingdom. They live within him, against his wishes, but to eliminate one will result in annihilating the three of them.

Tasked to protect a small port village by King Valder, Marcus finds himself in a war he was not expecting. Defending Reginhart will require the combined cooperation of Marcus, Asmara, and Tiecus  

Platt, an unusual local farmgirl, volunteers to help quench the demon's thirst to save her fellow villagers. As strangers living together within his tower, the pending war brings them all closer. Perhaps Platt is what Marcus needs to become whole and no longer in a constant struggle for control.