The group soon returned to the surface, and once Evolution was brought up.

Lori was carefully brought as she was on a stretcher.

"All right. Nice and easy." Heller said as they helped her out.

And soon, they begin to bring her inside.

Wall walks with Toshi's letter and hands it to Zhang.

And Zhang remained realizing he's gone.

And then Suyin appeared, and walked past Wall and approached Jonas.

"You couldn't bring Toshi back?" Suyin asked.

Jonas sadly shook his head.

"Why not?" Suyin asked.

"He closed the hatch." Jonas said. "He saved us."

But Suyin didn't look convinced. "You left him."

Not saying anything, Jonas then walks off.

"You left him because that's who you are." Suyin followed him. "You are the guy who leaves people behind."

"Suyin, that's not what happened." Chris said. "Toshi closed the hatch and sacrifice himself to save us."

Jonas turns back to Suyin. "You go that deep, you take your life in your hands. It was your choice to send them down." He remained silent and turned to Mac. "This is why I don't do this anymore, Mac."

And then Jonas walks away.

And Suyin remained uneasily silent.

And then Martin appeared with his Creaturepod. "I think there's something you wanna see on this." And handed it to her.

Sometime later, Lori was resting in a medical bed.

And Heller was checking on her vitals, and Jonas stood by the entrance.

"How is she?" Jonas asked.

Heller then went up to him. "Well, the puncture just missed her liver. She lost a lot of blood." He explained. "But she's stable."

The 2 stared at each other and remained quiet, and then Jonas heads out.

"Jonas." Heller turned to him.

Jonas turns back to him.

"I'm sorry." Heller apologized. "I was wrong."

"You saved Lori." Jonas said. "We can called it even."

Heller then nodded, and Jonas walks away.

The next morning, as the Sun raises over to the east of the Pacific.

Jonas was taking a shower, and after a few minutes. There was a ringing sound, and he turns the water off.

He soon got a towel on, and heads to the door.

And he opens it as Suyin suddenly came in.

"I just want to apologize for before." Suyin said. "I was angry and I lose my temper. And you did save my..." She then turns to he and saw he was only in a towel. And she didn't realized that till now. "You're naked."

She remained silent for a moment.

"I know you did all you could." Suyin said. "So, thank you."

"Yeah." Jonas nodded. "You're welcome. I know it's not easy being the person who survives."

"I'm gonna go now." Suyin said and heads to the door. "You should put on some clothes."

"Yep. That's the original plan." Jonas said.

"Okay, then. Carry on." Suyin said and got to the door.

Jonas nodded, and Suyin heads out the room and closed the door.

And Jonas walks away, and then Suyin glanced back at the window for a moment. And then moves away.

Outside, she facepalms herself of barging in like that.

And then Mac appeared from the corner.

"Hi. Uh... I was..." Suyin uneasily.

"It's all good." Mac said as they moved through the hall. "Jonas and Lori were the worst married couple ever, you know?"

"Uh-huh." Suyin replied.

"Whole experiment was over in a year." Mac said.

"I didn't ask anything." Suyin said and enters a room.

"I know." Mac said and enters.

Later, everyone was gathered in the meeting room.

And Suyin brought out a file of a Megalodon on her tablet. And soon it was brought to the TV screen as it showed a Megalodon and it's internal anatomy. And shows a tooth, and the biggest ever found was 7.48 inches. As well as a photo of a man standing behind a cast of Megalodon jaws.

"This is what attacked us." Suyin explained. "A Megalodon."

"Scientific Name: Carcharocles Megalodon." Chris said. "It's name literally means, Big Tooth."

"How big is that thing?" DJ asked.

"Between 70 and 90 feet." Suyin said. "21 to 27 meters."

"That's only a maximum estimate of it's size." Martin said. "Megalodons can reach a size of 60 feet."

On the screen, the Megalodon was then placed with skin over it. And then came to life as it then approached the screen with open jaws.

"The Megalodon was the largest Shark that ever existed." Suyin said. "It feared nothing. It had no predators."

Megalodon was a true Goliath.

It's jaws can open 7 feet, easily enough to swallow a person. And weighing at a whooping 100 tons, it was 100 times heavier than an average Great White. And at 60 feet long, it was the length of an articulated truck.

And then the screen showed a size chart of a Megalodon, compared to a Human, a Great White Shark, a Killer Whale, Kronosaurus and Humpback Whale.

Humans average in size of 5 to 6 feet in height.

Great White Sharks can average is size between 13 to 18 feet long. But the females grow bigger than the males, and Deep Blue is an example of that. And the biggest Great White Shark ever in recorded history was 37 feet, and was found in the 1870's in New Brunswick trapped in Herring weir. And they can get up to a ton.

Orcas or Killer Whales can grow to over 20 feet, and even reach a size of 30 feet. And males grow bigger than females, and the biggest ones can weigh 6 tons.

Kronosaurus was mid size Pliosaur of the Mid-Cretaceous shallow sea of Australia. Named after the Greek Titan Kronos, it grew to 30 to 34 feet long. But Kronosaurus was just one of several other Pliosaur species unearthed. The biggest known Pliosaur unearthed reached 50 feet long, had 9 foot flippers and weigh 45 tons. The same size as a Navy Patrol boat. But one fossilized bite mark of a Pliosaur showed one of an 80 foot monster.

Humpback Whales are some of the biggest creatures, growing between 40 and 50 feet long. And can weigh over 30 tons, and has the longest flippers of any Cetacean.

"It's jaws were stronger than any other animal, ever." Suyin said.

"Estimates placed that the bite force of a Megalodon is 40,000 pounds of force." Chris said. "And it can easily bite metal bar like it's nothing."

"The Meg could bite a Whale in half... crushing through the bones." Suyin said.

The screen a picture of a Megalodon attacking and hitting a Humpback Whale.

"Large Whales were the only food source of an adult Megalodon." Martin said. "When born, they're as big as adult Great Whites. And feeding on small Marine Mammals and other creatures. As they get bigger, they start going after bigger game. Like Cetotherium, and other Whales. Scientists believe that like Great Whites, Megalodon would ambush their prey. And come at them from below, thousands of Whale fossils from Megalodon's time showed they were attacked from below."

The screen then showed footage from 2008 series Jurassic Fight Club as a Megalodon attacks and bites off a flipper of a Brygmophyster. An early ancestor of the Sperm Whale but smaller.

And Megalodons were a Whale's worst nightmare.

"We are in uncharted territory." Zhang said. "Until today Megalodons were thought to have been extinct... for over 2 million years."

"Wrong." DJ corrected.

"A living fossil." Jaxx said.

"Why did Megalodon disappear anyway?" Jimmy asked.

"Well, you'll have to look at the Earth for that." Chris brought a map of the Earth at 2.7 million B.C. "Megalodon is believe to first appear some 20 million years ago. And millions of years later, it became the ocean's most terrifying predator. But then, something happened in the Earth's climate." And then the map showed North America, Europe and Asia turning white at the northern regions. "Then, around 2.5 million years ago, Megalodon began to face climate change. The oceans grew cooler as the glaciers grow. It was the dawn of the Ice Age. Whales with their layer of blubber are able to escape Megalodon and swam into cooler waters of the Arctic and Antarctic region. And Megalodon was forced to scrap a living as they stayed in the warmer waters of the Equator. And eventually, likely starved into extinction."

"Another theory showed that Megalodon also faced competition with new predators." Martin said. "Like Killer Whales, with their extreme intelligence and hunting in pods. A single pod could easily drive of an adult Meg."

"That living fossil ate my friend." Wall said.

Everyone remained silent of Toshi's loss.

"I cannot begin to express my sadness for Toshi's death." Zhang said. "We have the discovery of a lifetime. This is what Toshi worked for."

Wall turns to him.

"It's what we've all worked for." Zhang said to everyone. "But we're going to have to proceed slowly."

"Yeah, that's not gonna work for me." Morris said and turns to them. "What is Mana One?"

"This station?" DJ replied confused.

"Yes. And what's it doing?" Morris inquired. "Hmm? Right now."

Everyone remained silent and unsure.

"Uh..." Jimmy frowned.

"Exactly." Morris replied. "Nothing." He turns back to them. "20 million dollar rover, gone. 30 million dollar sub, gone."

Jonas then enters the room.

"You are now sitting in the most expensive underwater marine biology day camp... in Human history." Morris said.

"Hey, Crazy."

Jonas looks down and saw Meiying, and made a gesture of him to come to her.

"And now that we've actually found something amazing... we can't proceed slowly." Morris contined.

Jonas smiled and kneels down to Meiying.

"Thank you for keeping your promise." Meiying said.

"You're welcome." Jonas smiled.

"...because you lose an astronaut."

Meiying then got up and walks away and pats Jonas' left shoulder and leaves the room.

"You charge forward... or someone else will get there first." Morris continued. "Other people will want a piece of this thing... whether we like it or not."

"You seem to like it." Jonas said.

They all turned to him.

"Excuse me?" Morris blinked.

"I said, you seem to like it." Jonas repeated.

"I'm sorry. Is he part of this team?" Morris asked.

"You're damn right he's a part of this team." Wall turned to Morris.

"Okay." Morris said.

Mac silently smirked.

"You ever think that Mother Nature might know what she's doing?" Jonas questioned and approached them. "The thermocline might just be there for a reason? Hey, look, you wanna explore? Go ahead, explore. But if you start sending people back down there... don't call me to come save your asses. Because in case what happened down there wasn't clear to you... Man vs. Meg isn't a fight... it's a slaughter."

And then Jonas turns and leaves the room.

And the thought made Jimmy nervously gulped.

Down in the O-Level, a robot vaccum with a Shark fin moves across the floor.

And then the elevator doors opened, as Meiying as in it.

"O-Level."

Meiying was holding an iPad in an orange case, and then remote controls a ball and begins to move it around as Meiying follows it as the elevator door closed behind her.

Meiying moves across the hall controlling the ball. Outside, a few clicks from Bumper's mom were heard as she and Bumper were on a deep sea hunt.

As Meiying continues playing with her ball, a faint thud was suddenly as the click then fade to silent. Hearing it, Meiying looks around and outside of the hall as nothing was seen but water.

"What you people discovered is an even bigger goldmine than we ever thought possible." Morris said.

"We are completely unprepared to deal with creatures like Megalodon." Suyin said.

"I understand, and we can get prepared." Morris.

"We're talking about a Shark the size of a Whale." Chris said. "And has the ferocity to take out a nuclear submarine."

"Yeah, this is one of Earth's greatest monsters." Aviva said.

"I'm talking about a long-term plan." Morris said.

And then everyone's voices begin to overlapped.

Back in the O-Level, after ignoring the sound she heard.

Meiying moves through some plastic hanging from the ceiling. And then sets her ball down, and begins moving it again.

And walks across the hall, and after a moment Meiying turns the ball to left hall. But then the ball got caught into a blanket that was left on the floor. And the ball continues moving as it looks it can't get over it.

Meiying approaches the ball and kneels down to pick it up. But then, emerging from the blue behind her. Came the Megalodon that has somehow gotten through the thermocline.

And Meiying turns and then saw the giant Shark right in front of the glass. And after a moment, the ball slipped out from her grip and fell to the floor.

Meiying also dropped the iPad as well as stares at the monster Shark just several feet from her. And Meiying nervously pants and stood still.

They both remained still for a moment, and then suddenly the Megalodon opened it's 7 foot jaws that could swallow a person and Great White Shark whole, and then the enormous jaws clamp down on the window with a force that's 4 times stronger than that of T. Rex trying to take a bite to get her.

And Meiying screamed in fear.

The impact of the jaws was enough to shake the entire station as in the meeting room Wall looked up feeling it as it felt like a small earthquake.

Mac felt it as well and held his hand up silencing everyone.

"That's gonna be the other alternative."

In his room, Jonas was packing his bag.

And then stopped of feeling the vibration. And looked.

"What's that?" Mac said.

Everyone remained silent as they listened.

"Was that an earthquake?" Jimmy asked.

"It felt too sudden to be one." Koki said.

"I thought I heard someone screamed." Aviva said think she heard a scream.

Suyin thought she heard it as well. "My daughter."

And then she got up.

Jonas then rushed out of his room.

Suyin, Mac, Chris, Martin and Aviva quickly rushed out of the room.

And then they rushed to the elevator.

"What was that?" Martin asked.

Jonas quickly soon reaches the O-Level and then the elevator doors opened as Suyin, Mac, Chris, Martin and Aviva stepped out.

"Jonas. We can't find Meiying." Mac said.

"Did you see Meiying?" Suyin asked concerned.

And then Meiying was heard screaming as they rushed down the hall.

"Meiying?" Suyin called. "Meiying?!"

"I'll take this way." Mac quickly ran down the right hall.

And then Jonas, Suyin, Chris, Martin and Aviva rushed down the left side.

They quickly pass the plastic cover, and then saw Meiying's iPad and ball on the floor.

"Are those hers?" Chris asked.

"Meiying." Suyin quickly rushed over.

And they rushed to the bend.

"Meiying?" Suyin called.

They quickly got the bend, and then saw Meiying on the floor.

"Mama." Meiying cried.

"Meiying." Suyin quickly rushed to her.

She then kneels down and hugs her.

"Are you okay?" Suyin asked.

"What happened?" Aviva asked.

"There's a monster and it's watching us." Meiying trembled in fear.

And then Suyin turns to the window, and Jonas, Chris, Martin and Aviva looked at the window as it bears triangular marks on the glass left from the Megalodon. And then Mac appeared, and then saw the teeth marks.

And he approaches the windows and placed a hand on the glass as he looks at the teeth marks.

Then suddenly, like a speeding car a Humpback Whale came out of nowhere and rams the glass.

"Whoa!" Aviva jumped a little from that.

Jonas turns to that as well.

The Humpback is revealed to be only Gracie, and she squeals out and bumps the glass with her snout. And then she turns as suddenly Bumper and his mom appeared and quickly swam off in a hurry.

"It's only Gracie." Chris said.

And Jonas turns to Suyin and Meiying.

"It's okay." Jonas assured. "It's just a Whale."

Gracie then turns back to the glass and bumps it with her snout. But for a strange reason, she looked panicked.

"Wait. Where's Lucy?" Suyin noticing Lucy was missing. "Where's the mom?"

The bonds between mother Humpbacks and calves are incredibly strong. And calves stay with their mothers for the first year of their lives before going on their own. And mother Humpbacks always keep their calves in sight. And Gracie would never be away from her mother like this.

And then Colossal Blue and Blue Jr suddenly appeared, and swam by as if they were in a hurry and were fleeing from something. But hardly anything frightens an adult Blue.

And even Razor-Mouth appeared and also in a hurry.

"Wait, I think Gracie's nervous." Aviva said noticing the calves behavior.

"Hey... What's wrong, girl?" Chris asked gently.

Then suddenly, out from nowhere, the Megalodon's jaws clamp down on the young Whale.

Suyin quickly turns Meiying away as they watched as the monster Shark shakes her head violently side to side as Gracie squeals helplessly. And then after a few violent shakes. Gracie's tail was ripped off as blood spills into the water and the tail lightly twitches.

And they watched as the Megalodon chomps down on the half in her mouth and swims. And the tail half begins to sink.

As for Lucy, either she was fleeing with Gracie and gotten separated from her. Or worst, the Megalodon has killed her and suffered the same fate as her daughter.

And they watched as Earth's last Ancient Monster disappeared.

"Martin... Please me we just became the first Humans to witness a Megalodon killing a Whale?" Chris said in a frozen stance.

"Uh-huh." Martin nodded.

"Any chance it was a dream?" Chris asked.

"Uh-uh." Martin shook his head.

And for the first time in 2.5 million years...

Megalodon once again terrorizes the oceans.

Shortly after alerting the others, everyone was in the control room.

"Is the station all right?" Morris asked entering the room with Zhang.

"Report." Zhang said to Wall looking at a screen checking the station.

"No leaks. No visible damage." Wall reported.

"All right, team." Mac walking into the room. "Initiate emergency protocols. And nobody is to go near the water."

"If you insist." Jaxx sat down holding Meiying.

"Turn off all the underwater lighting." Jonas said to Mac. "Restrict the crew to essential areas."

"Last thing we want is to have Sharkzilla coming back." Martin said.

"Sharkzilla?" Koki frowned.

"Her name." Martin said.

"You said it was impossible for it to get up here." DJ said to Suyin.

"It should have been." Suyin said.

"But, how did Sharkzilla get pass the thermocline?" Chris asked.

"You guys, take a look at this." Jaxx said.

Jaxx then brought up a thermal image of the thermocline.

"When the glider came up, the thermocline was intact so it was 1 degree Celsius, right?" Jaxx said.

"Yeah." Mac said.

And then the 360 screen showed a disturbance of the thermocline.

"But a minute later, when the Evolution came up the temperature increased by 25 degrees." Jaxx added. "A Shark could come right through there. 20 Sharks for that matter."

"When the Meg hit the Origin, it slammed into a thermal vent." Jonas remembered seeing that moment.

"Yeah, we saw it too." Martin said. "It went off a moment after Sharkzilla collided into it.

"Those can release millions of gallons per minute." Zhang said. "The heat from that vent cleared the path through the freezing cold layer."

"Are you saying we opened up a super highway for giant Sharks?" Morris asked.

"Not exactly." Jaxx said. "It seems like it was a transitory event. The temperatures are returned to normal and the gap is closed."

"But not fast enough." Aviva said.

"Yeah. But not before a massive prehistoric killing machine decided to come up and say "Hi"." DJ pointed.

"I don't understand how they could've survived being cut off from the surface for so long." Koki said.

"I think it was cannibalism that kept the surviving Megs going." Chris theorized. "If anything, Sharkzilla could the last of her kind."

"Hey, look, we're wasting time." Jonas said. "That thing's out there. We need to find it and kill it."

Suyin turns to him as if he was crazy. "No. We can't." She stood up.

"This could a once in a lifetime chance to actually study Megalodon alive." Chris said.

"We should explore non-lethal options first." Suyin said.

"For the Meg of for us?" Jonas questioned.

Then suddenly, an alarming beep was heard as a screen showed a red dot appearing near Mana One's location.

"I've got an emergency locator beacon." Called a member. "20 miles south, southwest."

"What does that mean?" Morris asked.

"It means a boat has gone down." Zhang said.

Then suddenly 2 more dots appeared.

"3 boats." DJ announced.

"How is that possible?" Koki asked.

"That's the Meg." Jonas said. "We need to get there. Now."

Author's Note:

Did I forget to mention that Megalodons are constant swimmers to take in Oxygen to breathe? And Oxygen levels at the dark depths can be low.

And How's Sharkzilla for the name of the Meg?