The Ancient Curse of Mortality

Witches
The very existence of them had led to the bipartisan work of vampires and werewolves to eradicate them. Considering they are a dying breed with little power, werewolves and vampires had found themselves fighting each other over land and power.
An ancient legend comes to light, a legend that Alpha Liam of the Sapphire Pack finds to be true. How do recent high school graduate twins find themselves mixed up in a thousand year old legend and a werewolf-vampire rivalry.