The slayers burden

In the fog-drenched streets of 1890s Victorian London, the line between monster and man is as thin as a razor's edge. Callie Summers is a young woman living a double life: by day, she is a refined debutante navigating the stifling ballrooms of the elite; by night, she is the Slayer, a supernatural warrior chosen by fate to keep the darkness at bay.
Trained by a rigid and secretive Watcher's Council, Callie has been taught that all vampires are soulless demons deserving of a stake. That belief is shattered when she crosses paths with the Salvatore brothers.

The Salvatores have arrived in London fleeing a bloody past in Mystic Falls. Stefan, weary of his own nature, is attempting to live as a "human" aristocrat, suppressing his hunger to the point of madness. Damon, meanwhile, has embraced the city's underworld, running illegal gambling dens and feeding on the corrupt.
When the Council identifies the brothers as "High-Priority Targets," Callie is sent to execute them. However, her first encounter with them doesn't end in a dusting. Instead, she discovers a terrifying truth: a Greater Evil is stalking London, and it's framing the Salvatores for its grisly kills.
Forced into an uneasy alliance, Callie must hide the brothers from her own Watchers while they hunt the real killer. As the trio descends into the city's supernatural belly, Callie finds herself torn between two brothers who challenge everything she was born to do.

does not follow original tvd plot line
!i don't own any characters only callie!