Separate Entities//Miss Peregrine AU

What if Jacob Portman dismissed his grandpa's last words? What if he put away the letter from 'Miss Peregrine'? What if life went on for Jacob as normal, until his past caught up to him one day? His life will be thrown upside-down when one day in Smart-Aid he meets a certain... peculiar customer. --- Told from the point of view of my OC, Kallie Sanders. The only things different are what I mentioned above and the visual ages of some of the children. Nearly everyone, save for the younger ones (essentially Enoch and younger), looks one or two years older. Obviously, I recommend reading the actual book before reading this. WARNING: EXPLICIT LANGUAGE