They gather around the first pedestal and Donatello reads the riddle inscribed upon it.

What must take a bow before it can speak?

"A really polite dude!" Michelangelo blurts.

There's a crack and a flash as lightning strikes the rod above the cage. Destiny screams and her eyes shoot open as the electricity rockets through her and the teens whirl around. It stops and Destiny collapses back into a shaking, wounded lump.

Casey looks at the sky, then at the cage. "What the heck was that?"

"Did I not mention that every time you guess the riddle wrong, Destiny gets zapped?" Circa asks, tapping her chin as she flutters her eyelashes. Raphael growls, muscles bulging, and she giggles. "Well, she does. It won't kill her immediately, but who knows how much she can take in this state?"

As she throws her head back laughing, Donatello points to each of them. "Nobody. Say. Anything," he enunciates. He points between Michelangelo and Casey. "Especially you two. Only say it if you're sure of yourself in a good way."

"My bad, dude," Michelangelo says, hands held up in defence.

"Yup. Gotcha," Casey says.

They read the riddle again and Donatello smirks. "Oh, this is easy." He clears his throat. "A violin."

Circa waves her hand. "Correct. Now, go find a violin and you will have your key."

"Who goes and finds it?" Raphael asks.

Leonardo thinks for a moment before nodding. "Donnie, Annalise, you two solve the riddles. Two at a time if you can. Whenever one is solved, one of us—" He motions to himself, Raphael, Casey, and Michelangelo. "—will go and find the item. The island is small so it should be quick."

"Awesome! I'll go get the violin!" Michelangelo volunteers. He turns and races away.

The next few riddles go by faster. Donatello and Annalise together make quick work of them and Circa watches in silence, eyes glinting.

When it comes to me, you go on red and stop on green. What am I?

"Watermelon," Donatello answers. Raphael races away.

Every night I'm told what to do, and each morning I do what I'm told. But I still don't escape your scold.

"An alarm clock," Annalise says. Casey races away.

I am a mother and a father but have never given birth. I'm rarely still, but I never wander. What am I?

"A tree," Donatello says.

Annalise gives Leonardo her onō and he hurries off just as Michelangelo returns with a violin. The orange-masked turtle is slightly out of breath but manages to keep a tiny smile on his face as he rests the instrument on the first pedestal. In a glow of light, it turns into a bronze key.

"Sweet! So glad this town has a music shop," Michelangelo says.

Donatello frowns at the fifth riddle. "Annalise," he says, motioning her over, and she goes to his side.

What flies when it's born, lies when it's alive, and runs when it's dead?

She blinks a few times. "I...have no idea."

"I have a theory. Runs...makes me think of water. So maybe it's ice." He purses his lips. "Only thing is, ice doesn't fly and...lies? Does it mean tells lies or lies down?"

Annalise's eyes brighten. "Snow? Snow falls, then lies in piles..."

He gasps. "A snowflake! A tiny piece of snow!" When the lightning doesn't come and Circa rolls her eyes, he laughs and points at her. "Ha-HA!"

Michelangelo claps. "Yeah! Got it!" He turns on his heel, then turns back. "One thing...it's raining. How are we supposed to find snow?"

"It's Poptropica, I bet someone has a snowflake preserved somewhere," Annalise says, edging on the hopeful side of things.

Casey, Raphael, and Leonardo return with the watermelon, alarm clock, and tree, although the tree is more of a sapling.

"It was all I could find that I'd be able to carry," Leonardo insists.

With those three items shrinking into keys on their pedestals—emerald, iron, and wood—Donatello and Annalise get to the next riddle.

What is harder to catch the faster you run?

"Your breath," Annalise says immediately, laughing to herself.

The turtles look to the cage and the spectating virus above it. Circa waves her hand at them, arching her eyebrow, and they breathe a sigh of relief. No lightning, right answer.

"Wait, breath?" Casey asks, nose wrinkling. "How the heck are we supposed to find breath?"

"Maybe we should breathe on the riddle," Donatello says. "Or one of us should, like Annalise, since she answered the riddle."

Annalise moves closer to the pedestal, pulling her short hair out of the way. "I'll try," she says.

She inhales, then exhales over the pedestal, and sure enough, a key appears that looks like it's made of glass. The boys grin and they high-five all around, including Annalise at the last second.

Michelangelo returns just as they calm down, holding a glass box with something inside. "I had to play a game of cards to get this," he explains. "It's got a preserved snowflake inside, see? Pretty neat, huh?"

He sets it on the pedestal and an ice key takes its place. Moving on, the group listens to the next riddle.

What comes once in a minute, twice in a moment, but never in a thousand years?

"Oh, I know this one," Donatello says. "It's the letter M."

Raphael crosses his arms over his chest. "So...do we go rip the M off a building or something?"

Michelangelo raises his hand. "My name starts with an M! What if I could be the key?" he asks. The others look at each other, skeptical, and he clasps his hands together. "Please? Let me try!"

"No harm in that," Leonardo says. "Go for it, Mikey."

He moves to the pedestal and reaches over to place his hand on top, covering most of the riddle from view. A few seconds pass and just when he's about to pull away, a glow ignites beneath his hand. When it fades and he pulls away, a topaz key lies on top.

"Yes!" Casey whoops. His dark eyes flicker to Donatello. "How many more do we have, Don?"

Donatello counts on his hands and counts the pedestals. "Four," he says. He moves to the next one and reads it aloud.

The cost of making only the maker knows, has no value when bought, but is sometimes traded. A poor man may give one as easily as a King. Is broken without being held.

"Uh...what?" Annalise asks. She blinks a few times, frowning. "I have no idea."

Donatello hums low in his throat, muttering. "Making something that costs only the maker, but doesn't have any value when you buy it? That makes no sense, what with how capitalism works. Everything costs something and everything has value, especially when you buy it, so..." He groans. "I'm blanking. It's got to be something obscure but I just don't know!"

Leonardo stares at the riddle, then looks up at Destiny, and he feels his chest constrict. "A promise," he whispers. Donatello stops mid-mutter and he finds the attention on him as he straightens up. "I...I think the answer is a promise."

Every eye goes to the rainy skies, but there still isn't a lightning bolt to be seen. Circa crosses her arms tightly over her chest, letting out a little "hmph".

"Do we have anything that represents a promise?" Donatello asks. "None of us are married, so a ring is out of the question."

"No promise rings either," Raphael says.

"That's the thing," Circa calls. "Promises are all about words, about protecting someone or keeping a secret or...something equally sickening and sweet. A ring is cute and all, but..." She shrugs. "It just doesn't stack up to the real deal."

Annalise leans over to Michelangelo and whispers, "Is she...helping us?"

"I think she couldn't stay shut up anymore," he replies. "I know I couldn't."

Leonardo is still staring at Destiny. He makes a lot of promises to everyone that he loves. He promises to train harder. He promises to be a better leader. He promises and he promises and he promises. Some of them he does keep, others he breaks.

"Guys...could you back up a little?" he asks, turning to his team. "I'm gonna try something."

The five of them backtrack a few feet until they're out of earshot. Leonardo stares down at the riddle for a second, blinking away the rain dribbling over his eyes, then takes a deep breath. He isn't sure what will be enough, but the riddle makes it sound like he needs to make a promise that will be difficult to keep, but nonetheless something that he will be willing to work for.

"I promise," he says, "to be someone who stays by your side through thick and thin, even when you're being difficult or I'm being stupid. No matter where our relationship goes or what it becomes, no matter where you go, I..." He swallows hard. "I will keep loving you and I will keep being there for you, as a friend, a brother, or more."

He waits, squeezing his eyes shut in anticipation, but nothing comes. Instead, there's another glow and in a few seconds, a sapphire key has replaced the riddle on the pedestal. Leonardo turns to his awaiting family and grins, waving them over.

"I got it!" he calls.

"Nice one, Leo!" Raphael says, giving his brother a thump on the back.

Annalise is already at the next pedestal.

You can carry it everywhere you go, and it does not get heavy. What is it?

"Hey, I know this one! My dad makes jokes about it all the time," Casey says, racing over to Annalise's side. "It's your name!" No lightning. Casey pumps his fist and whispers, "Goongala..."

"Hey Casey, since you love your name so much, why don't you try to get the key?" Raphael asks.

"Sweet idea, Raph, my man," Casey says, shooting finger guns at his friend. He turns back to the riddle and clears his throat. "Casey Jones."

An obsidian key appears and the guys engage in another round of high-fives. As they hurry to the next pedestal, they find that it's blank. Not a word, much less a riddle, to be seen. Circa starts to laugh as they aim their glares at her.

"You made it to the tenth riddle!" she croons. "Such smart children. I'm truly impressed."

"Where's the last riddle?" Leonardo demands.

"Patience, Leonardo, patience. I have to tell you the final riddle since it's a little different than the others," she says. She snaps her fingers and three different boxes appear before them, each about the size of a paperback book. "The key has been placed in one of these boxes. Each of the boxes has a statement written on it, two of which are false and one that is true. If you can determine which box contains the key, you obtain it and Destiny is saved."

"What if we choose the wrong box?" Raphael asks, wary.

"Then you fail the game, you don't pass the island, and...Destiny may not live to see another day," Circa says.

"Wait, so none of those other keys make a difference? If we fail this one, that's it?!" Casey exclaims.

"Well, without the other keys, the final key is useless if you do manage to win it," Circa says. "But...yes. This is the be all, end all. Good luck!"

She disappears and the teens move to the boxes, grave.

1. This box does not have the key.

2. This box has the key.

3. The second box does not have the key.

Annalise points to box two and three. "Oh, this is kind of easy," she says. "Number two and number three contradict each other, confirming that one of them is telling the truth and one is a liar. If number two is false, then it automatically makes number three true because it's confirming it."

Michelangelo frowns. "Wait, slow down a bit," he says. He holds up one finger. "...repeat that, please."

She turns pink and coughs. "Sorry..." She points to box number two. "It says this box has the key. If that is lying, it means it does not have the key. That's what number three is telling us."

"So number three is true!" Leonardo says. "We have to pick box number three."

"Man, this was easy," Raphael says, hooking his hands behind his head. He tilts his head up and shouts into the stormy skies. "Take that, Rainbow!"

Annalise reaches for box number three, smiles on every face, when Donatello lunges forward and grabs her shoulders. "No! Don't touch that box!" he orders.

"Donnie, what the heck?" Casey asks.

Donatello looks at each of them, his eye-ridges furrowed. "Circa never said to pick the box that says the truth," he says. "She said...find the key."

"Okay...and?" Michelangelo asks.

He sighs. "Please look at statement one again."

Annalise reads it. "This box does not have the key."

"Exactly," Donatello continues. "If box three is true, that makes the other two false. If number one is lying, that means that the truth is that this box..." He trails off, expectant.

"That box number one has the key!" Annalise gasps. "We have to choose box number one!"

"Donnie?" Leonardo says. "You're a literal lifesaver."

Raphael glares at the sky again. "Almost got us there," he growls.

Leonardo opens box number one, revealing a diamond key. Each of them takes a key, some of them doubling up, and together they hurry to the cage and start unlocking the ten locks. With each one that opens, the key shatters.

Leonardo fits the diamond key into the final lock and as it shatters, the front of the cage disappears. Leonardo ducks inside and gathers Destiny in his arms, carrying her out onto the grass. Donatello retrieves her broken armour.

"Des?" he asks, tapping at her cheek. "Destiny, come on, wake up. You're safe now."

She's unresponsive. Her injuries still bleed coding and when he listens for breath, there's hardly enough passing her lips to stir an eyelash. She feels cold to the touch. Leonardo looks up at his expectant family and shakes his head before he clutches Destiny to his chest, burying his face against her shoulder.

"Sarina? April? Sensei?" Raphael shouts into his visor, tone gaining desperation. When nothing comes, he adds, "Diaval?" Still nothing. "Come on, giggles, if there was ever a time for you to help us, it'd be now!"

Donatello starts tapping away at his visor. "Sarina? Sarina...please, come in."

The rain comes down harder and thunder rolls, lightning flashing in the distance. Leonardo doesn't look up, his entire body shaking, and Annalise sinks to her knees. Michelangelo kneels at her side.

There's a flash of light as Circa reappears. "I can't say that I'm not disappointed," she says. "But, no matter. Let's say that you just completed...stage three. That leaves one more stage unless I decide that I'm not done yet."

"You better be done or we'll decide that you are," Raphael snaps.

"I'll puck you!" Casey threatens.

Circa blinks a few times. "Oh, I know when I'll be done. I'll be done when I get what I want," she says.

Donatello frowns. "Taking over the world?" He reaches for his bō staff. "We won't let that happen."

Annalise looks up, face paling. "No...not the world. The world is the endgame," she says. She starts back to her feet, Michelangelo following. "We almost forgot to tell you—"

Circa's pupils turn red and she raises her hand. "Stage four, begin!"

In the blink of an eye and the snap of her fingers, all seven of them are transported out of Poptropica.