My family lies in a grave and now your's will too
Reserved, vengeful, calculated, calm, precise.
Crossbow
During the great war when the Vampire Hunters and Vampires fought the Lark family was the last remaining family left in the war. The war lasted centuries and it was a war of secrecy since most battles took place during the night. When there was a only a few Larks remaining some began to retreat. One branch of the Lark family didn't where others traveled to America during the very first voyages. The family that stayed behind also had to retreat, but since most of their fortune was spent on war they had to resort to closer shelter in Spain. Generations past by and eventually the remaining Larks were found during the approach of the new millennium and slaughtered by vampires. One member of the family remained however. That person was Selina Lark who kept her last name because she was never adopted when she was sent to the orphanage when she was an infant.
When Selina turned 13 she began to become curious of her family. She dug up information about where they lived, which was a manor that was never bought do to the murder. Selina found the place abandoned and explored the various halls, finding that the place had been robbed and littered with graffiti. She fell through the floor which left her stranded in a dark basement. As the lights automatically turned themselves on she found herself surrounded by swords, axes, guns, and other weapons. Astonished by all the machinery she found something out of place. Something that looked like it had survived centuries. It was an old diary kept by their family, dating back to the first warrior given the last name Lark because of his speed. Selina read every single page that night and cried when she found out the fate of her parents. She got angered as she began to toss things around, going from room to room. It wasn't until later that she realized she'd been running at high speed, as her skin got hotter. She noticed in the journal something about super speed and a special black tar that Larks put on themselves to prevent burning which was later adapted to make suits. She found these suits in basement along with the weapons.
When she reached the age of 14 she'd mastered most of the weapons, preferring the crossbow. She hadn't gone to school and she lived out in the manor, caring for herself, which was relatively easy with super speed. When she was ready she began to hunt vampires, scouting the news for unusual murders and disappearances. By the age of 19 she had killed off the majority of vampires in Spain and found out more about the originals location. She is currently in Scotland, living in the ruins of the Lark family. At the speed she runs at she could be in London with in three seconds of her location.