The Overworld's natural elements were saved. Around the same time, Hollow Bastion was overrun by a demonic populace. The heroes from the Overworld were transporting via airship after triumphing over the Fiends, deciding to help the warriors at the castle, though outnumbered. No one loses their life other than the minions of evil, largely due to the more threatening entities not engaging the heroes at the moment.
From the Spacial area above, streaks of black lightning produce a void, widening with each progressive second. The gap drops a gray, magnetic sphere that crashes down on the outskirts of Hollow Bastion. The matter, acting as a vacuum, erases the landscape, stretching out into miles over a short period.
The Shadow Lord stares up, looking into the outer realm where he witnesses
Necron
attacked by other supernatural beings. As his newly conquered castle is absorbed by the magnetic orb, the heroes make it back to the airship in time to flee. They experience turbulence as the wind retracts towards the void. Over time, they make it out... barely.
With an agitated engine breaking apart from the ship's hind area and through the exhaust system, the airship doesn't have far to go before making an uncontrolled landing into a cluster of mountains. The ship makes it far enough that it is not in range of the now-disappearing magnetic hole.
The power is out... everything is dark... you all wonder in your heads, "am I alive?" A cough rings out in the far distance; this is when you realize you haven't died (yet). The sound of a spark igniting now echoes from down a familiar corridor. Your eyes still need time to adjust, but you feel in no danger at the moment.
"I need your help. Search for survivors on the other side. I'll make my way towards the deck."
Hearing others converse, you continue to feel safe. As your eyes refocus, you faintly see a few individuals hoisting flares over their eyes and walking around the ship's hangar. Someone gives you a hand, lifting you up to your feet and aiding you in a seat not far away.
The power can be heard coming back on. Gradually, the lights flicker on and the entire hangar becomes visible. Whoever is in the cockpit opens up the boarding ramp. Everyone naturally wants to go outside and get some fresh air until the ship is ready to fly again.
"They're here..."
"What do you mean?"
"I can sense him.. and her.. they must have been on the ship with us ever since we were in the air."
"Who, Aerith?"
Suddenly (it's always suddenly), a scream comes from outside. The body of one of the crewmates is snatched by an entity that is barely seen; moving so fast that the majority of onlookers only saw a blur. More people flood out of the airship and cautiously glance around, asking what the commotion was about. The only ready answer at the moment is that this unknown being means to do harm.
A different group begins to talk:
"Where did that man go?"
"I don't know, son. Something took him. Go back inside and stay close to others."
"What about you?"
"I.. I think it's best if we go look for him. He may need our help."
"What if he isn't alive, father?"
"We... we will find that out ourselves. Now go inside. It isn't safe out here-"
A cackle interrupts the end of his sentence - A feminine voice leads everyone to suspect a woman is out there. The son is soon ushered back aboard the ship by a few others. Staying on the outside, a group of gunmen ready their weapons and stay on the lookout for whatever they may be up against.
"Whatever the hell this is, even if it presents itself in the form of a woman, don't let your guard down."
"What if you're wrong about that judgment call? I mean, we were wrong about Ultros, remember?"
"Shut up, Balthier."
Out of nowhere, the feminine creature rushes out from behind a set of large rocks and flails its limbs at the group. Before they can visualize what this thing looks like, it knocks them all off to the side and leaps on top of the airship. Glass can be heard shattering, signaling that this thing was likely breaking into the vessel.
"Shoot!"
"Shoot? I don't remember hearing us shoot anything! What the hell just happened?!"
"We don't have time to argue. All of you, head back inside and warn the others."
And with that, the pack of gunners all rush back onto the boarding ramp, carefully protecting their rearsides as they enter separate doorways that lead to various parts of the ship.