Done.
Explanation:
We are onboard the Sky-Ray all-terrain battlecruiser. However, we are now experiencing something called a 'dark storm', a placeholder name until I think up something cooler sounding. These are small random pocket dimensions that appear from time to time, analagous to the Dark Hour in Persona 3, the descending darkness of Silent Hill, the 'Psyren' of Psyren, or 'Closed Space' in Suzumiya Haruhi no Yuutsu. They are remnant dimensional rits left behind by the collapsed sanctuaries. They contain large amounts of dark corrupted mana which empowers the remaining memories left inside, twisting and corrupting them, causing them to manifest themselves as twisted 'zombies' of fairies, youkai, humans, and others from the collapsed sanctuaries. Only those who have been exposed to sanctuaries or are contracted to sanctuary refugees can experience them.
Now try to survive.
Current plans - go about it as you see fit. No need to wait for me as I'll be a little busy.
We fight our way to the bridge. Please don't finish this all in one go. Give everyone a chance to fight a little. Feel free to explore the ship a little, take refuge in a few rooms, take breathers, whatever. You get the idea. The dark storm will dissipate around the time we reach the bridge.
I've left the rest of the instructions to TranceHime/Velvet Silk. He will adapt, alter, or add to the plans as he sees fit.