"Alright, we're here."

Emmet looked out the window of the side of the helicopter he sat at upon hearing Chase; they had been flying for a few hours now and he was beginning to get bored.

Though he was confused by what he saw when he looked out of the window; all he saw was endless sea. There wasn't anything that would count as landmarks; just endless sea.

"Chase, what are we doing here? I thought we were going to Atlantis," said Emmet, turning his gaze back from the window to look at the pilot seat, where Chase was currently.

"And how did you think we were going to get to Atlantis? There isn't a path from the surface to the depths with this, Emmet; other than diving down," said Chase, taking off his headset and getting out of the pilot seat.

"How are we going to get to the ocean from here? This doesn't look like a safe height," commented Laval, slowly getting out from his seat and pressing a button to the side of the side panel. This opened the door of the helicopter, allowing the rushing wind to blast into the helicopter, whipping around the interior.

"Who says we're going to jump to the ocean?" asked Chase harshly, before he grabbed a radio to the side of the door.

"Bring her up, Brains," said Chase, before hanging up the communications again.

"Wait, did you say Brains?" asked Emmet, turning his head around to look at Chase at hearing the familiar name.

Hearing a strange sound, which sounded a bit off against the waves crashing into one another, Emmet turned his gaze from Chase to the ocean surface, looking out for what was the cause of the sound.

When he narrowed his eyes and looked carefully, Emmet spotted something surfacing from below.

From the water, a strange-looking vehicle slowly surfaced; with a wide main body, with two parts extending from each side of it. At the end of each rudder-like panel, there was a large, silver helicopter blades.

As the vehicle surfaced, the helicopter blades slowly rotated from facing backwards to facing towards the sky, and started to pick up in speed. As their speed increased, the more of the vehicle was revealed; after a few seconds, the whole of the vehicle was revealed.

It looked as though it was a strange hybrid between a helicopter and submarine; with the submarine taking on the majority of the structure, with the helicopter aspect being taken up by the propeller blades on either side of the submarine.

"What is that?" asked Emmet, his eyes widening in shock at the sight of the vehicle rising up from the ocean, rising up the level of the helicopter.

"The Heli-Sub; the latest technological advancement from the Agency," said Wyldstyle automatically, just as Chase went to open his mouth to explain something along the same lines.

Wyldstyle noticed the silence coming from inside the helicopter, and looked around; she saw the others were giving her strange looks, with Chase giving her a raised eyebrow look, while Emmet's mouth was hanging open.

"Uh…how did you know about that?" asked Emmet, closing his mouth again as he asked this.

"Uh…" said Wyldstyle slowly, scratching the back of her head slowly; almost as though she was trying to stall for something…

"We don't have any time to wonder about this," said Chase, adding, "We need to get aboard, quickly."

Just as he said that, the Heli-Sub had reached the level of the helicopter, and one of the side panels opened up slowly.

"C'mon," said Chase, before he suddenly jumped the short distance between the helicopter he was currently on and the Heli-Sub he was trying to get to. Though everyone else didn't question this, Emmet was confused; that distance was just manageable with two working legs, but wasn't something wrong with one of Chase's?

"Uh, Chase; how did you do that? I thought you hurt one of your legs?" asked Emmet, scratching the top of his head.

Chase glanced at the others on the other helicopter, and replied, "Come on; we're running out of time." He obviously didn't hear the question.

The others looked at Emmet, before they jumped from the helicopter they were currently on and to the Heli-Sub.

Emmet was about to jump, when Laval, with them being the only two left on the helicopter, beside Shay who was piloting the helicopter, grabbed onto his arm.

"You're not the only one that thinks something's off Emmet," Laval said to Emmet, though because of the sound of the dual helicopter blades above them, he didn't have to whisper to the Master Builder.

Emmet glanced aside at Laval, before he slowly nodded; at least he wasn't alone on his thoughts.

With another nod, Emmet and Laval both jumped across the small gap between the two vehicles, with the doors closing behind them. They looked around, finding the interior similar, if not the same, as the helicopter they were just in.

Emmet turned his gaze to the pilot and co-pilot's seat, which currently had Chase sitting in the co-pilot's seat. Though he was surprised by who he saw sitting in the pilot's seat.

"Brains?"

Sure enough, the monocle-wearing Power Miner they had met previously after the first incident with Anti-Builder in a while, was sitting in the pilot's seat.

Though instead of the silver-armour he wore back under the mine, he wore what appeared to be a dark grey wetsuit, with lime green arms and black gloves. Emmet saw a helmet and oxygen tank scattered across the large interior; along with several others.

"Oh, hello there," said Brains, leaning over the back of his chair and waving in greeting at the others.

"What are you doing here? Last time we met you, you were with Duke in the mines," asked Emmet, clearly confused by what had just been revealed.

"Eh, I didn't think that the Miner lifestyle was something that I wanted to do for the rest of my life. So, I found this job opportunity working on an expedition to Atlantis. I figured, why not?" said Brains, shrugging slightly as he turned to Chase, "we ready to go?"

"Just get moving; we're wasting time," grunted Chase, grabbing the headset in front of him and putting them on, signalling he was ready to go.

Brains simply turned his gaze to face forward again, pressing a few buttons before the helicopter blades on either side of the sub body slowly turned to face backward. Instantly, the Heli-Sub started losing height again, heading back towards the surface of the water.

While the others started to shout in panic at the sudden loss of height, which caused them to suddenly press against the ceiling, Chase and Brains were comfortably seated in their chairs, watching the water move closer and closer.

They finally collided with the surface, sinking beneath the waves slowly; since the blades were facing backward already, they were instantly propelled forward, and Brains slowly controlled the ship so they were heading downward.

"How long is this going to take?" asked Emmet after a few minutes, leaning back against the side of the side of the interior, sitting beside Laval, as the two of them were busy playing a card game to pass the time.

"We're here," said Brains suddenly, causing the Construction Worker and Chimaian to drop their cards and press their faces against one of the windows.

"Wow…" said Emmet in awe.

"Amazing," whispered Laval.

Over the last underwater mountain they travelled past, the sight that lay before them was amazing.

Before them, was the gateway to Atlantis; with a circle of white at the very centre of two sections connected to it, which held several blue panels all pointing towards the centre. Surrounding the portal, several species of Portal Guardians, including Barracuda and Lobster Guardians, Hammerhead and Manta Warriors, and Black Sting Ray Guardians slowly floating around the entrance to Atlantis.

"How do you suppose we get past all of these guys?" asked Zeon, pressing his face against one of the windows.

"I don't think we have to," said Chase calmly, pointing out through the cockpit glass.

They all looked forward, and were surprised by what they saw.

The last time they looked, the fish species surrounding and guarding the Portal entrance. But now, something seemed to have spooked them; a dark shadow was cast above the Portal, casting darkness over all of the guards.

Looking up through the glass, Emmet asked, "What's going on?"

"The Guardian of the Deep; that's what's going on," answered Brains, pressing a button and flood lights attached to the top of the sub lit up.

Above them, now in full sight of the sub, was a large black coloured shape; in the shape of a large shark, with black and dark yellow accents to its skin. Strange, golden Atlantean symbols were imprinted on its neck and running down its back. Pure white teeth flashed against the light of the sub, revealing several deep and old looking scars running across its body.

"That's not right…this guy's supposed to be guarding the Portal entrance; why's he going to attack it?" questioned Brains, scratching the side of his head in curiosity.

"I think I know a reason," said Wyldstyle slowly, looking closely at the Shark Guardian.

Emmet and Laval did the same, before Emmet said, "Oh no."

Atop the Guardian of the Deep, holding a guiding rig that was attached to the sides of the Guardian's jaw, was Anti-Builder.

Fun Fact: Brains does actually appear in both Power Miner and Atlantis LEGO themes. :)