With Lia's instructions, they were very quickly able to initiate the storing sequence to store the two vessels. In a window the outside, they see bluish spotlights coming from the Gyrfalcon shining on the Pelican and Harrier. Within the lights, they slowly disappear from sight. A beep is heard from the room and in a small window by the entrance to the room, two drawings of the stored flying machines appear.

"Astounding!" Nessarian's voice exclaims from the outside of the craft. "To think this had existed...!"

Lia waves towards the voice, but does not go to investigate. "Now I need to rest a bit, after all of this..."

DM screen:

 The elven scholar looks around the the large flying machine, and almost completely doesn't hear Lia, to which he distractedly says, "Huh? Ah... Yeah..."

Curiosity get the better of him and he fiddles with some controls in a random room.

Intelligence: 13

Some droning and humming is heard, along with him some very furious scribbling. He hums as he does so, not in any sort of musical sense, more of him talking to himself in a less obvious way.

(Is everyone doing a long rest?)

Gulgus

Gulgus yawns, stretching, and concedes he could use some rest as well.

Avia gets ready to sleep. She prepares to make some food and a new brew tomorrow morning.

"Thank you all." Lia says, glad the others are willing to take a rest, her exhaustion evident as she curls up for a rest herself.

The night passes without incident.

Lia's fatigue has disappeared. However it seems that Nessarian was so engrossed with studying the Gyrfalcon himself, he had exhausted himself and had fallen asleep in the room in which they had spoken with the Nuckelavee.

(Also, 2500XP gained for finding the truth behind the Steelscream Hawk, by my calculations, that will be  833XP each. Everyone should be level 5! Welcome to tier 2!)

"I feel so much better." Lia informs the others as she stretches the next morning. She brushes out her white-blond hair, then moves around, looking at the construct they are in. She refreshes herself on what she learned the previous day, ready to lift off as soon as everyone is ready to go.

Cree's voice is heard just outside of the hatch, "Uh, fellas? Something's happening, but I don't know what! Whatever it is, has got Scath spooked!"

Sure enough, a slight tremor starts being felt through the Gyrfalcon. While very gradual, it is surely getting stronger.

(If anyone wants, you can roll arcana, nature, perception, or survival check)

Lia perception: 10 Guidance: 3

Gulgus

Survival: 18

Gulgus has experienced various type of earthquakes throughout his travels. He knows that the tremors they generate start incredibly strong and fade over time. Further the patterns are fairly irregular. This time is different they are getting stronger and seem to have definite regularity.

Lia looks out of the windows of the Gyrfalcon and sees that through the cracks of the doors to the hangar are some some lights sweeping from left to right at regular intervals

Gulgus

"Gordul!  We may wan tae get out o' here soon unless we want tha whole place comin' down on top o' us!"

"Agreed, let's get out of here." Lia nods to the doors though. "There are some strange lights outside though, might be that someone is waiting for us as we leave, so be on your guard."

How are you guys going to escape?

Does Lia know anything, from her knowledge dump on their ship, that would aid them here?

(I'll give stat block shortly).

She knows that the Gyrfalcon has a some combat capability. It has wing-mounted weapons that can launch large-caliber bullets (currently loaded with 500 rounds, expending 10 bullets each needing its own +3 to hit, each successful hit does 2d10 piercing damage) and a retractable, bottom-mounted, rotating turret that is essentially a cannon (Currently loaded with 80 rounds, +6 to hit, 5d10 bludgeoning damage, doubled for structures).

It, as well as the Harrier, is capable of opening the door to the hangar from a distance.

The Gyrfalcon's unique feature is that it can fly to a destination mostly without pilot intervention, only needed for takeoff and landing.

Is there a way to enter the harrior from inside the falcon? This way someone can attack with the falcon while she uses the harrior...

There is a way for quick deployment and recall for such situations to deal with threats in multiple directions. It is a much faster process when the Gyrfalcon is in flight, as the machine coming out will get a jumpstart from the Gyrfalcon. Whereas in this situation, the Harrier would have to start on its own. (Basically a bonus action vs. an action)

Gulgus

Gulgus, while appearing a bit confused over the flying machines, looks to take Lia's lead and any instruction as to their escape.