No, we thought that the monsters wouldn't be swarming back east all over the island, preventing anyone who might want to help us from doing anything. For goodness sake, Fissoa isn't even on that !@#$ing island.
I'm not sure just what you mean here.
Have you paid attention to just
where the monsters are swarming at present? Because not a single one that ran west has left the western subcontinent. Y'know, the place that we clearly stated would be depopulated.