A Surprise Attack!
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An enormous fissure had opened in the surface, right outside of the Emerald Fontain Port City. A large group of people wearing black hoods and emanating powerful Demonic Auras gathered around it.
The powerful Spiritual Barrier that surrounded the entire tunnel had been completely shattered, now falling into tiny glass-like pieces. The fissure they opened using the strength of a gigantic Draconic Beast behind them allowed for the entrance of hundreds of monsters and demons that were right beside them.
"Looks like the barrier shattered as easily as they told us it would…"
"Indeed, we are lucky to have such a strong backer, don't we?"
"Hurry!" Commanded one of them, bringing the monsters and demons into the tunnel's interior. "Kill the Summoner at all costs, and all his damned group if possible! Nobles, commoners, it doesn't matter. Kill them all and enter the port city! Today, we shall take yet another of the elves' safe havens."