Enchanted — K.K. Allen

After her mother's tragic and mysterious death, Katrina Summer is hurtled into life in the quaint, seaside town of Apollo Beach, to live with her estranged and cryptic grandmother. Rose Summer fills Kat with legends of her Ancient Greek ancestors from which the Summer family descends, causing her world to unravel as secrets from her heritage are exposed--secrets that her mother purposefully concealed. 

Leading to her birthday, the day of the Summer Solstice, enigmatic visions and disturbing dreams haunt her. But when her visions start to become reality, her fear turns to terror as powerful forces threaten the lives of those around her.
Amidst the turmoil, Kat meets Alec Stone, her gorgeous neighbor, who becomes her sole solace in an evocative world of mythological enchantment and evil prophecies that lurk around every corner ...