And Kingdoms End (The Sixth Book of the Small Gods) - The Books of the Small Gods, #6

Evil courses through the land, seeking to choke the roots sprouting from the Seed of Life and destroy humanity's last shred of hope. The Evenstar has returned, and with him comes the rise of the Small Gods. When armies amass at Ikkundana, the City of the Sick prepares for the final battle. But where is the firstborn child of the rightful king, the one prophesied to save humankind? Who will save the kingdom?A sailor.
A child. A once great warrior now a shadow of himself. None can stand against the invincible statue, nor hope to turn the tide of a war waged against the gods.