Concubine follows Wren, the beautiful yet rebellious former first prince of Fontain, as he learns to embrace his new role in the Empire. With the King Isaac at his side, it seems that nothing can go wrong. He’s adapted to the court and has strong allies, and his relationship with Isaac couldn’t be better. The scars of his past finally seem to be healing.

But as Wren enjoys his new life, shadowy forces are taking shape to destroy his happiness. As his relationships fray and he finds himself the target of a vengeful goddess, he must learn to depend on himself and his own strength to survive. Wren must find a path between prophecy and war or lose everything he’s fought so hard to achieve.