An Oath of the Blood — Valerie Zambito

On the island of Massa, heroes are born not made.  The idyllic lives of four young shifters living in the exiled land of Pyraan are shattered when a tour of legion duty gives witness to a brutal enemy invasion.  Born with magical prowess none has seen in over three hundred years, the friends become pivotal in a race against time to save a people they hardly know, but are sworn to protect. The journey exacts a terrible price from Beck, Kiernan, Rogan and Airron as they battle demons, both real and personal, to save the island.  But, whatever the chances, the shifters will fight. The blood oath will have it no other way.