The Devil's Task

Harlow was set with a task by the Devil. An apocalypse has hit the world, and there are overpowered species roaming the Earth. She must travel around the world to find and destroy the the Origins of the new species that have sprung up. In the process of destroying the first Origin, though, she dies. Her friend Aithne is now the only one who can set the world right. Will she be able to destroy the Origins in place of her friend? Or will she die just like Harlow did?