Fourth and Final book of the Fire Within series It's been 6 years. 6 years since an Apocalypse. 6 years of quiet, 6 years with no powers, 6 years of safety. The Hargreave siblings have all made a life for themselves in this new timeline, but peace isn't eternal, especially for them. When they all meet up again, they get their powers back, and someone they thought was dead makes a reappearance the cycle starts all over again and they have to save the world one last time.