Plagued by memories of her parents' fear-frozen deaths, Lilly throws herself into her sword-wielding superhero persona of Edge, whose true power comes from her ability to break down and solve complex problems.

But when a subtle, stealthy power invades Lilly's home and life, it threatens her still-tenuous relationship with Marc and Dev, the two men she loves most in the world.

Will Edge's problem-solving prowess be enough to protect her partners' trust in her-let alone their very lives?

Or will she freeze, just like her parents?