Five Immortal Hearts by Savannah Rose

Five immortal princes, each powerful beyond measures, but only one will have the rights to rule the world. A right to be bestowed upon them by a mere mortal.
Misty didn’t see them coming; they entered her world without foreword or warning, shattering her glass cage of boundaries, forcing her to open her mind to parts of a world that should not exist.
Five sets of blue eyes watched her closely.
“We need you to make a choice, between the five of us, for the coming age,” they said, and they were serious. This was serious. Failure to choose would lead to Armageddon, a scorched earth piled high with the bones of elders and infants.
All that power in the hands of a mortal. All that power in HER hands. She wasn’t sure she was ready, but then again, this is the kind of thing no one could ever truly be ready for.