Legend of the Storm Sneezer

Legend Seeker. Part-time Ghost Hunter. Time Traveler.
Thirteen-year-old Rose Skylar sneezed a magical storm cloud at birth, and it’s followed her around ever since. But when Stormy causes one too many public disasters, Rose is taken to Heartstone, an asylum for unstable magic. Its location? The heart of a haunted forest whose trees have mysteriously turned to stone.
They say the ghosts are bound to the woods…then why does Rose see them drifting outside the windows at night? And why is there a graveyard on the grounds filled with empty graves? Guided by her future selves via time traveling letters, Rose and Marek—best friend and potential figment of her imagination—must solve the mystery of the specters and the stone trees before the ghosts unleash a legendary enemy that will make their own spooks look like a couple of holey bed sheets and destroy Heartstone Asylum.
Letters from the future are piling up. Rose can’t save Heartstone herself. However, five of herselves, a magical storm cloud, and a guardian angel who might very well be imaginary? Now that’s a silver lining.
But will they find what killed the ghosts before what killed the ghosts finds them?