Dragons of Tantallon

A tale of dragon-shapeshifter brothers who defied their father and used their powers for good instead of what he bred them for: evil. 
No immortal Fae shall fall in love with a human and breed fae/human.

Cast into Fae purgatory for violating that Fae law, Balor, King of the Foremore Fae, the Evil Fae, did. Balor created dragon shapeshifters from his own sons to fight the Good Fae, Truthe De, for the control of all mankind. The three brothers defied their father and used their powers for good instead of what he bred them for: evil. In his anger against his sons, he murdered his true love, Bres, without realizing what he was doing until it was too late. Devastated his true love was dead, he blamed his sons and cast a spell upon them to be immortal until they found their own true love, which may never happen.