The little mermaid and her companions swam inside the doorways, leading them into another hallway. This time, they were guided by a river of ethereal oasis waters in the middle of the hallway. Along the way, they saw another ancient paintings on the walls. But the story behind the paintings are encyclopedias, anthologies and other worldly symbolism. Complete with explanations on how each Nai'Viqian technology works. Ariel is intrigued by the fascinatingly designs, although she has difficulty understanding the alien subtext. Even Travannus is a tad puzzled by the words himself. Nevertheless, the gang pressed onwards through the halls. At the end of the hallway, there lies a lone ancient artifact in the middle of the chamber. When Abzû activates the machine, the room lites up to reveal another ancient paintings of the Nai'Viqian civilization. So far, the story is making sense to them. Then the doors opens on the right wall. It turns out to be a maze-like course for them to get through. With every lone machine Abzû activates, the more mysteries shall be revealed and more doors shall open. They continue to follow the ethereal river throughout the unknown temples. Flounder swam closer right next to the small robot whilst Sebastian rides on top. At the end of the path, it appears to be an exit to the caves. As the gang swam forward through the caves, they've stumbled upon a triangular door. Once the door is open upon approach, the little mermaid and her companions swam inside. Thus they made it to the other side. Then suddenly, a group of large blue whales came to accompany them on their quest. Down to the depths below, they all go. One of the blue whales swims up to their side. It eyeballed Ariel, Abzû and Travannus, out of its curiosity. And they too acknowledge the majestic creature. Then the blue whale begins to sing its tune. During that moment, Ariel herself starts bursting into song, along with the whales' tune. Her voice touched Abzû's mechanical heart. It is a nicely melodic rhythm to journey by. The mutant merman Travannus himself was compelled to sing along with them. By the time they finish their song, the blue whales left them at the darkest ocean floor. Abzû turns his head lights on in order to guide his friends by his side. Not a moment so soon, Abzû can sense a sudden danger straight ahead. Before Ariel could swim onward, Abzû quickly stops her from progressing too far.
"What is wrong, Abzû?" questioned Ariel in confusion.
"Just hold on a sec." said Abzû as he pulls her away from the danger. "There's something harmful in front of us."
He shines his light to the blue, only to realize that there were triangular mines floating around the ocean floor. Despite of being abandoned for thousands of years, they are still highly functional and extremely dangerous beyond approach. They must carefully maneuver around them as they possibly could. During that dangerous endeavor, Abzû frees the goblin sharks from their prison. Alas the group continue to carefully avoid the mines. If they get too close, the mines will painfully electrocute them. Travannus is the first to learn about that the hard way. As he was not paying attention to where he was swimming, one of the mines abruptly hovered over him and electrocuted him. He roared in agony as he sinks to the floor. The little mermaid and her friends were horrified by the incident.
"Oh no! Travannus!" shrieked Ariel as she rush to the merman's side. "Are you alright?"
The mutant merman is in pain from the shock.
"Ugh!... I'll be okay, Ariel..." groaned Travannus in pain. "What was those things?"
"My guess would be, those are mines." said Abzû as he swam over to help Travannus off the ground. "Now that we know that they are dangerous, we need to steer clear of them as we possibly can."
"Well easier said than done, mon!" Sebastian grunted in fear. "There are too many of them! How are we gonna do dat?"
"I can't believe I'm going to say this but I'm with Sebastian on that." added Travannus, although in pain. "These mines are nasty as an fisherman's hook!"
"Just follow my lead." said Abzû. "We just have to watch their patterns. If we can time it right, we will get pass them unharmed. You have to trust me."
"I trust you, Abzû." said Ariel.
"Yeah! Me too." said Flounder.
"Ooh I trust you as well." whined Sebastian, dissatisfied. "But don't blame me when I unfortunately become crab cake from those mines!"
"Oh Sebastian, don't you worry. You can ride with Travannus." suggested Ariel.
"She's right." says Travannus. "Besides, you know darn well I won't let anything happen to you."
"I know dat, Travannus." said Sebastian in a frustrated voice.
"Let's get going, everyone." says Abzû as he leads the group. "And remember, stay close to me at all times."
The group agrees with him and they continue to swim onward through the fray. They carefully maneuver their way around the area, avoiding the hovering mines in the process. Although Travannus and Abzû were both hit numerous times by the mines, the group is not stopping anytime soon. From the dangerous ordeal, they came across what appears to be a generator. When Abzû turns it on, it deactivates the mines. But it only activates the doors from afar by a little percentage. It turns out that they must find the other generator somewhere on the ocean floor. So they went to search for another generator. The mines severely damaged Abzû out of nowhere, leaving him painfully injured as the result. Ariel helps him up off of the ground and carries him with all of her strength. They must continue to find the other generator. After nearly harmed by the insufferable mines, they finally found the other generator. Now Abzû has to turn it on with little strength he had left. The mines were deactivated and the door is fully charged. Then suddenly, Duncan the shark swam through before the little mermaid and the gang could enter it. Once they pressed forward inside, the group were greeted by the last few mines on the cave site. But by learning from their nearly deathly experience, they successfully evaded the mines unscathed. Along the path, they happen to find that Duncan is stuck with the broken mine on top of him. The shark utters his cries.
"Help! Can somebody help me please!?" shouted Duncan as he struggles to no avail. "Get this thing off of me!"
Feeling rather sorry for the creature, Ariel knew that they couldn't just leave him there. She turns to the group.
"Guys! We have to help him!" cried Ariel.
"What!? Are you crazy, Ariel!?" screamed Sebastian in a detestable manner. "Last time I checked, he ate one of our friends for lunch! How do you know if we're not going to be next on his main menu!?"
"You know? As much as I want to help the poor fellow, but Sebastian is right." says Travannus, taking the crab's side. "Sharks can't be trusted."
"We can't just leave him there!" cried Abzû, taking Ariel's side. "He needs our help!"
"Oooh I have a bad feeling about doing this..." whined Flounder.
The little mermaid begged the mutant merman to help them free the shark. Alas he finally gives into the girl's pleas.
"Ugh! Alright fine!" sighed Travannus in defeat. "But I don't make any promises if he won't. If he tries to take a bite on any of you, I'll tear him apart."
So the group swam down to help left the mine off of Duncan. With Travannus's brute strength, they got the shark free. Flounder and Sebastian both hid behind the small robot, preparing for the worse. But to everyone's surprise, Duncan swims back to thank them for their help.
"Hey, thank you so much for getting me out of there." says Duncan as he allows Abzû to pet his side.
"Well you're welcome." Ariel complied royally.
"Now that's out of the way, I must be going!" said Duncan as he quickly swims off. "Bye for now!"
"Is he serious!?" growled Travannus in pure annoyance. "We just went out of our way to lift the thing off of his tail and this is the thanks we get!?"
"Well at least he didn't eat us. That's for sure." added Sebastian in relief.
"Yeah, thankfully." replied Flounder.
"Well we should be going too." says Ariel.
"My thoughts exactly." says Abzû, agreeing with the red haired mermaid. "There's still much to be done. Let's go."
Thus the group swam onward on their quest. From venturing towards the cave's exiting, they followed the humpback whales downward to the watery ravine. It is so dark down there, that not even Abzû's lights can't guide them to the pitch black nothingness. Luckily for them, a glowing giant squid came by and she kindly offers to help them. With her light, the giant squid lures the aquatic adventurers into the abyss. At them end of the path, they found a pillar with the blue light on its peak. The gang thanked the giant squid for her assistance. Now they will carry on from there. The giant squid swam off into the darkness. The gang swims towards the luminous blue light on the pillar. Thus they've enter the portal. They are now in the twilight realm of the gods. This time, the luminous light on the waters below them, is showing the way to the amethyst shrine. So they followed the light to the shrine. When they went inside, there's the lone bubble waiting for them. They know what they have to do. With Flounder and Sebastian hiding behind them, Ariel, Travannus and Abzû all touched the bubble together. The bubble fused with Abzû's essence. The realm begin to rumble. From the sea quake and the blinding light, out came three giant squids ascending to the ocean world. And their natural habitat is fully restored once again. No only that, the huge doors have finally opened. Now the little mermaid Ariel and her friends can venture forward to wherever the journey takes them. The giant squids thanked the aquatic group for restoring their natural habitat, followed with their goodbyes. Ariel turns to her friends.
"Now let's get going!" boasted Ariel with glee.
"Okay!" Flounder complied happily.
"Oh you bet I'm ready for tis, mon!" shouted Sebastian with glee.
"You're darn right I'm coming!" boasted Travannus, cracking his knuckles.
"Then let's do this together." says Abzû in a strong voice.
Now the gang must move forward to restore the other habitats. And maybe they are a step closer to uncovering the mystery of Abzû's forgotten past. So whatever is on the other side of the doors, lies another obstacle waiting for the little mermaid and her friends to overcome them. So the unforgettable journey continues on.