After the Granites lift Clain, Phryne and Nessa safely from the rubble of the destroyed lab, the factions of the Lost Millennium face the fateful decision to unite for their best shot to bring Fractale down—or surrender.
And this "key" is the thing that makes 
it possible to restart Fractale,
،وهذا المفتاح هو السبيل لإعادة تشغيل فراكتال
Und dieser Schlüssel
L’entropie qui dure