Tain

Only one thing stands between the army of Maeve the Intoxicator and its goal of the great bull of Ulster: a small young warrior named Setanta. Maeve, with all of her cunning, all of her powers, sees no problem in dispatching the gadfly known to Ulster as Cu Chulainn.. But Setanta is no normal defender. His father is a god, who has given him a monstrous power and a magical spear, and his skills were learned on a magical isle of women warriors. Alone against all odds and all comers, he fights as strange a war as was ever undertaken—in the narrows of every stream the army must cross.