Based on 'The War' being a former book of mine that never really received an ending so I'll change that by producing a story that's up to date and comes to a close as well after the dust settles.
Echo was having a typical day at school when the unexpected happened a demon appeared. It murdered everyone in her class wounding her fatally across the abdomen . It disappeared leaving her behind in a pool of her own blood . What she didn't know is when you are attacked by a demon and live they pass on majority of their powers. Nine months later she realizes this and decides to exact revenge meeting many people along the way.