5 parts Ongoing MatureWhen Callisto Rosier transfers from Beauxbatons to Hogwarts, she expects to be sorted into Slytherin like the rest of her pureblood family. Instead, she's placed in Gryffindor, much to the dismay of her cousin and the enigmatic Regulus Black, a boy she had the misfortune of meeting before her sorting. Cold, aloof, and fiercely loyal to Slytherin, Regulus is everything Callisto finds frustrating.
As the year progresses, their paths cross more than either would like. What begins as icy disdain slowly shifts through a series of reluctant encounters, hidden exchanges, and a surprising connection formed through letters that reveal more than words spoken aloud ever could. But in a world where family expectations weigh heavily and the shadows of war are creeping closer, their growing bond is as dangerous as it is undeniable.
Set against the turbulent backdrop of a Hogwarts on the brink of chaos, 'Dearest, Regulus Black' is a slow-burn enemies-to-lovers story about defying expectations, discovering unexpected truths, and finding love in the most unlikely places.