Mark Chadbourn 
Darkest Hour 
Book 2 Of The World’s End Trilogy

The Eternal Conflict between the Light and the Dark once again blackens the skies and blights the land. On one side: the Tuatha De Danaan, golden-skinned and beautiful, filled with the might of the angels. On the other: the Fomorii, monstrous devils hellbent on destroying all human existence. In the middle: five Brothers and Sisters of Dragons, determined to use the strange power that binds them to the land in a last, desperate attempt to save the human race.