Let The Sky Fall by Shannon Messenger
*Click the cover to be taken to the Goodreads page.*
Goodreads Summary: Vane Weston should have died in the category-five tornado that killed his parents. Instead, he woke up in a pile of rubble with no memories of his past – except one: a beautiful, dark-haired girl standing in the winds. She swept through his dreams ever since, and he clings to the hope that she’s real. Audra is real, but she isn’t human. She’s a sylph, an air elemental who can walk on the wind, translate its alluring songs, even twist it into a weapon. She’s also a guardian – Vane’s guardian – and has sworn an oath to protect him at all costs. When a hasty mistake reveals their location to the enemy who murdered both their families, Audra has just days to help Vane unlock his memories. And as the storm winds gather, Audra and Vane start to realize that the greatest danger might not be the warriors coming to destroy them, but the forbidden romance growing between them.