The book is called The Tales of Dungard; Immortal Secrets. It is about two half mortal half immortal siblings Lacey and Damien who are living in our world. Immortals are supposed to be the guardians of gifted humans but their purpose has been corrupted by a group of immortals known as the Elders who control the immortal world Alamar.
A daughter of one of the Elders, Ashlynn comes to Lacey and Damien and warns them that the Elders are going to be causing an uprising and destroy all the mortals in order to claim this world as their own and expand their empire. She takes them to her father who lifts the binds off of Lacey and Damien granting them with the powers they were born with. Just around this time Lacey discovers a gifted human named Scarlett.
Scarlett is an elemental and has the ability to manipulate air. She too is new to her powers and is soon detected by a race of beings called The Bortilo. The Bortilo are immortals that have been banished into darkness. Soulless and powerful they feed off of mortal souls to keep themselves strong. They especially cannot resist such a powerful mortal who cannot defend herself on her own.
As a tragic loss occurs in Scarlett’s life she is thrown into the world of the Immortals with Lacey as her gaurdian. Between the impending war between the Elders and the ever present threat of the power hungry Bortilo, survival looks grim for the two halfbreeds and their human charge. What exactly is so special about Scarlett that it puts her life in danger? Even with the help of Ashlynn and her father will it be enough to make a stand to survive the tomorrow?