Rosemary Sutcliff 
High Deeds Of Finn MacCool 

Set more than a thousand years ago in the soft green hills of Ireland, in a shifting time when enchanted creatures and the Fairy Kind still flickered in and out of the lives of men, the ancient stories of Finn Mac Cool and the brotherhood of the Fianna shimmer with magic. Here Rosemary Sutcliff breathes new life into adventures of these Irish heroes and their battles with strange and supernatural beings.