When a girl lands in Alagaesia and is given the powers of the Zerg, just how drastic will history change? [Rating may change]

Stranded on a world separated from the swarm, one larvae consumes a strange stone in a desperate attempt for survival. The stone, however, is not even a stone at all, but a dragon egg carrying the last hope for Alagaësia. But this creature has other plans . . . for both the DNA inside and its eventual host.