I still have so many questions left, like why the goblins weren't transported inside Castle Rock in the first place. Why transported them outside? And why target Castle Rock if they could target Bluebell in the first place?
I answered my own questions, eventually. The goblins simply wouldn't fit inside Castle Rock, and the inhabitants and players were sober and wide awake at the time they were transported here. They could easily kill them compared to if they waited when all were drunk and asleep.
Furthermore, Bluebell might have a magical barrier that prevented this teleportation of armies from happening.
Whatever the reason was, it didn't change the fact that we were trapped here.
Hmm . . . maybe I should have a magical barrier created in the future?