Shen, The Kingdom of Xi'an
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"Your lordship, I have orders from Nanking" the telepathic earth demon said as he burst into the room. The messenger was a rather weak looking man, short and thin he could barely use magic at all. If it weren't for his rare talent he would've long ago been stationed as an earth tiller, rotating fields in the cold of winter to aerate and fertilize the soil. 

"Well out with it boy, the second wall just fell" barked the anxious looking Lord, who had gotten fat from years of governing. Every movement made the demon's folds ripple like a sickening ripple.

"His Majesty has ordered the city evacuated, and the walls destroyed." 

Another unhealthy looking demon, a toad looking woman plastered with layers of make up, spoke up "and how are we supposed to pull that off? We're about to be surrounded!"

Chung sent a brick from the wall flying into the woman's head, causing it to bleed "Lady Bei if you ever question his Majesty in my presence again I will have you launched over the walls to clear us a path yourself"

Biting back her fury she stewed in the corner, muttering to her self. Meanwhile Lord Chung pondered over the problem. Lady Bei wasn't wrong, the island was not ideal for escaping and Theocrats weren't about to allow a city's worth of humans to peacefully walk away.

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As the castle worked out how to evacuate an entire province's worth of humans and demons the defenders were hard at work fighting off an army. The central wall, weakened by the flood, had proved no match for the boulders being hurled at it. Within minutes wide gaps had opened up, allowing some particularly foolhearty Theocratics to engage the earth demons. Although the humans stood no chance in hand to hand combat their sheer numbers made it impossible for the demons on the ground to repair the wall. Instead they ended up creating artificial walls around them, made with the bodies of dead humans.