A/n: And here's the first of TNT's suggestions! (I changed it slightly, so a few more people end up over here, but Hookfang's one of them!)

"Hey, Hiccup!" Snotlout called out, running over to the chief, "Have you seen Hookfang?"

"No..." Hiccup frowned. "When did you last see him?"

"Yesterday!" Snotlout said, stopping his jog in favour of pacing around. "I went to sleep: he was there, I woke up: he was gone!"

"Isn't that normal?" Hiccup asked sceptically. "He likes his morning flights, and he isn't the most patient."

"Yeah! That's what I thought, but he didn't come back in time for lunch! He's always back by then, and he wasn't today!"

"Okay, okay..." Hiccup soothed, "I'll go get Skullcrusher, see if he can't find him."

"Thanks." Snotlout said earnestly. "Not that I'm worried or anything!" he continued, remembering his usual arrogant Viking bravado now that the panic had been abated. "Hookfang's so awesome, he's probably too busy fighting off his fans back at the cave to come over here!"

"Yeah," Hiccup laughed slightly. He turned to Toothless. "Come on bud. Let's go find Skullcrusher."

'It what?'

'It jut disappears! Honest!' Skullcrusher insisted, 'Right there!'

'Here?' Hiccup checked, prodding in the air. 'You're certain?'

'Yeah,' Skullcrusher nodded. 'It doesn't go down from here; I've checked.'

'He's right,' Toothless said, looking down, 'I can't smell a thing, and Hookfang takes after his rider when it comes to views on bathing!'

'How odd...' Hiccup murmured. 'Well, we have to go back and tell -'

'Hiccup!' Skullcrusher shouted, nearly stopping flying out of shock as he realised that Hiccup and Toothless had disappeared too, right in front of his eyes. He'd literally blinked and missed it; all that was left was a slight ripple in the air where the two had once hovered.

'Hiccup!'

"Hey, Skullcrusher," Fishlegs greeted pleasantly, smiling at the tracker dragon as he landed in front of him, "Looking for Eret?"

'Hiccup and Toothless... gone... I just...' Skullcrusher panted, slumped against the floor now as he shook his head in utter disbelief.

"What?" Fishlegs exclaimed, waving his arms around in a vague gesture meant to calm the dragon, "Hiccup's what?"

'Missing! Like Hookfang!'

"Hookfang?" Fishlegs echoed.

"Hookfang? You know where he is?" Snotlout demanded. Fishlegs jumped at his friend's sudden appearance by his side.

"No..." he said, slightly confused now, "This is the first I've heard of any of this. What's going on?"

And so Snotlout dived into an explanation, with the help of multiple flailing gestures and frantic half-sentences in Dragonese , the events that led to Hookfang's, then Hiccup and Toothless's, disappearances.

'- Snotlout that we couldn't find Hookfang. Wait... what?'

Hiccup's thought process came to a jarring halt as he realised that Skullcrusher was no longer there. Well, he isn't here, wherever 'here' is... he amended, looking down to notice that there was a sudden lack of sea below them. Instead, it had been replaced by a collection of strange, towering structures, all that had apparently been erected in seconds. Unless, of course, it was him and Toothless that had suddenly, inexplicably moved.

"Where are we?" he wondered, running a hand through his hair in absent thought.

'I don't know,' Toothless admitted slowly, eyes scanning the land below with equal parts confusion and distrust.

"Do you think Hookfang's here?" Hiccup asked, squinting as he moved his head from side to side slightly to look for the monstrous nightmare.

'I don't know. Maybe -' Toothless stopped talking when he noticed the familiar stream of fire jetting into the air from a spot on the ground a few metres away. 'Never mind - found him!'

"And you last saw him here?" Astrid asked, trying desperately to keep calm. She was starting to understand why Hiccup had been so sarcastic as a teenager (and still was): some people were, truly, stupendously stupid. It no longer surprised her that there was something strange happening, but gods she was sick of everyone asking her for answers they knew she didn't have.

'Yeah. Right over there. Don't touch it!' Skullcrusher shouted suddenly, noticing Snotlout reach out to prod the space Hiccup had occupied, leaning over from his place on Barf and Belch's back to do so. He jerked backwards at the warning, instantly trying to act cool afterwards. 'You might disappear too!'

"Okay..." Astrid said hesitantly. Ridiculous and impossible situations were Hiccup's area of expertise, damn it, and she really had no clue what to do next. She took a steadying breath: "Okay. Everybody stay away from the area, for now; I'll start investigating this... this."

"Hookfang!" Hiccup yelled, ignoring the crowd of strangely dressed people that he'd just had to fight his way through. He slowly approached the panicking dragon. 'It's okay. It's okay...'

Hookfang shook his head adamantly, closing his eyes against the strange flashes coming from the even stranger devices the crowd members were all holding.

"Would you stop that?" he snapped, turning to face the people. "You're scaring him!"

The crowd stayed silent for a second, muttering to each other for a bit before restarting their yelling tenfold. They don't understand me! Hiccup realised. And I don't understand them...

Momentarily ignoring the language barrier, Hiccup moved onto more pressing matters: Hookfang's wellbeing, primarily. 'I'm here now, and we're going to work out a way out of here.' he said, as quietly as he could to still be heard over the growing noise from the crowd. He edged towards the dragon, palm facing out. Hookfang completed the gesture by pushing his head into Hiccup's palm, letting out a decidedly calmer snort.

"Great. Now, let's get back to where I left Toothless -" Hiccup spared a glance over at the darkened street corner that Toothless watched the scene from, the night fury clearly wanting to join the action but staying back to not cause any more confusion, "- and get out of here. For good."

Hookfang nodded his agreement, crouching in preparation to take off. Instead of launching himself upwards, Hookfang suddenly slumped to the floor, eyes slipping shut and his breathing slowing.

"Hookfang!" Hiccup yelled, and Toothless pounced. The crowd screamed at the introduction of a second dragon, and Toothless soon succumbed to the same thing Hookfang had. A glint of red on their backs revealed it to be a tranquilliser of sorts.

"Ah!" Hiccup gasped, holing his hand up to his neck reflexively as he felt a prick there. He had just enough time to register that he, too, had been struck by whoever was hiding in the shadows before his legs buckled and he collided with the pavement.

When Hiccup came to, he was alone. Or, he was the only one awake in the room. He could see Toothless and Hookfang, both still asleep, on the other side of the room. They seemed to be in completely different lighting though, as though someone was shining a reflective shield in Hiccup's eyes whenever he tried to look at them.

Groaning slightly, Hiccup pushed himself up off the ground. He stood up slowly and started walking over to the dragons.

"Ow!" Hiccup hissed, frowning. He'd been walking along, minding his own business, when he'd suddenly bumped into something. But there was nothing there. A changewing, perhaps? Hiccup didn't have time to investigate though: a click from the other side of the room caught his attention.

On the other side of the room, a door opened. A man stepped through, expression blank and holding a few pieces of paper. He was dressed as oddly as everyone else Hiccup had met so far.

"Hello," the man said, and Hiccup was pleasantly surprised to find that he could understand him.

"You speak Norse?" he checked.

The man nodded shortly. "Now, time for me to ask the questions. Firstly: who are you?"

"I'm Hiccup," he introduced. "These two are Toothless and Hookfang. And there's something blocking the way between us..."

"It's a glass barrier." the man deadpanned. "Anyway: what are those?"

"Dragons, obviously!" Hiccup gave the man a questioning look. "Why've you separated me and the dragons?"

"We don't know if they're dangerous yet. And we don't know if you are, either, so you'd better co-operate.

Hiccup frowned. "You mustn't know much about Vikings," he commented. "We have stubbornness issues."

The man smiled, though it didn't reach his eyes. "Well, Americans aren't much better."

Hiccup puzzled over that statement for a second. America was supposed to be uncharted land, impossibly out of reach and full of riches. How had he managed to stumble across it, and find it full of rude people, no less?

Groans from the other side of the barrier stopped that train of thought, as Toothless and Hookfang stirred. 'Toothless!' he shouted, 'How are you?'

The oddly dressed man looked confused about the use of Dragonese, but Hiccup felt no great rush to inform him. 'Get over here,' he continued, 'And we can escape!'

The two dragons nodded, attempting to fly over and finding themselves hitting the same, strangely invisible barrier that Hiccup had. Toothless shook himself off and shot a quick plasma blast that made short work of the 'glass' - some barrier, Hiccup thought scathingly, couldn't even survive a simple dragon attack! - before leaping through the now-smouldering hole.

'Let's go, bud!' Hiccup laughed, grabbing Toothless's harness as Hookfang shot a hole in the walls, giving the trio easy access to the outside. They managed to escape and fly quite far before they realised that they still didn't have a plan other than 'escape.'

'Where now, then? I doubt that we'll just get -'

And Hiccup, Toothless and Hookfang blinked out of existence.

'- transported back to Berk at random. Oh.' Hiccup finished, finding himself suddenly face to face with Astrid.

"Woah!" she yelped, startling and jerking back. "Where'd you come from?"

"America!" Hiccup laughed. "And it's full of rude people; no point going and looking for it anymore!"

"You... But... Welcome back."

About the not-knowing-what-glass-is thing: I know that book!Fishlegs has glasses, but there's no glass in the films/TV series, and I'm taking creative licence for a couple of seconds worth of humour. (Though if anyone knows a lot about the history of glass for some reason...)