Shadow was dragging Sonic by the wrist as they walked through the hallways and the staircase of the castle of Horror.

Sonic didn't squirm but slightly flinched at the grip of the evil prince as he was dragged. His eyes roamed around and he gasped at the surroundings and decorations.

'Wow!' he thought with wide eyes and a dropped mouth. 'These decorations look more like Ric's type of style but honestly, I love them! They're better than flowers, hearts and glitter…'

Finally, the duo made it to Shadow's room, where the ebony hedgehog pushed the door open with great force and shoved his prisoner inside. Sonic yelped as he was thrown onto a silk bed with scarlet red blankets, dark red bed sheets and pillow.

"Ugh…" he rubbed his aching head as the door was shut loudly.

"Shut up!" Shadow growled, folding his arms in annoyance and leaning against the wall. "Your 'goodie' check up is about to come so do me a favor and shut your mouth!"

Sonic's ears pinned in surprise before he nodded and held his head low, sitting up on the bed as he kept silent.

Shadow sighed in relief and rubbed his temples. He really wasn't in the mood for any of the azure hedgehog's shenanigans at the moment. He was tired and grumpy because he didn't get enough sleep that morning so he was prepared to kill ANYTHING that bothered him.

After a few minutes, there was a knock at the door. Shadow opened it and saw the two doctors of the castle, the cult sorcerer Knuckles Illumine and the Frankenstein Vector Shocker, along with the vampire nurse Rouge Blood.

"Hey there, Red Stripes," Rouge greeted the evil prince with her usual flirty voice, her fangs shining as she grinned.

"Rouge." Shadow glared at her as the three entered, closing the door behind them.

"We have orders from your father to give the prisoner a 'goodie' check up." Knuckles shuddered at the word, taking off his hoodie from his red cult uniform to show the disgusted expression on his face.

Sonic's ear twitched. 'I doubt they could.'

"How do we do this 'goodie' check up, anyway?" Vector scratched his head. "Neva' studied about it before…"

"It's easy," Shadow sighed. "Just handle the patient with feather-like movements and speak in a high-pitched, girly voice,"

Sonic flinched but it went unnoticed by the evil monsters since he was sitting on the bed behind them. Like Manic and Maurice, he HATED high-pitched, girly voices. It actually surprised him when Maurice befriended Amy when her voice had the highest pitch out of all of them.

Vector and Knuckles gagged at the information while Rouge swallowed in the verge to hurl. Shadow rolled his eyes at them.

"Yeah, it's bullshit." he growled, folding his arms. "but father says it's necessary so he doesn't die before we kill him,"

"Can't we just give 'im a normal check up, like we usually do in our land?" Vector groaned, dragging his claws on his head, causing electric sparks to appear. "I can't make a girly voice, let alone make it high-pitched,"

"I agree with Vector," Knuckles nodded.

"Well, the decision ain't up to us," Rouge turned and pointed at the azure hedgehog. "It's up to him,"

Sonic blinked at them, slightly jumping when the sharp finger was pointed his direction. The three faced him and he felt awkwardly nervous.

"Uh…what's up?" he tried to act natural but he wasn't listening after a few minutes of the evil monsters' talk.

Shadow growled, annoyed then he advanced towards the azure hedgehog with his arms still folded.

"We can't do a 'goodie' check up on you, is that alright?" he tried to sound nice but his tone sounded as if he was pissed.

Sonic sighed in relief and smiled, nodding. "Yeah, it's fine by me. You guys probably can't figure out how to do a 'goodie' check up, anyway,"

He smirked as Shadow's eye twitched, signaling that he just got triggered by the sudden mockery.

The three evil beings behind Shadow gasped, surprised that a foreigner such as Sonic would dare to mock/challenge the evil monster prince.

"So," Shadow glared daggers at the other, his ruby eyes glowing in rage. "are you saying we CAN'T do 'goodie' check ups just because we're evil?!"

Sonic's smirk faltered and he suddenly looked worried. 'Omg, did I just offend half of my blood? Oh, man. Great job, Sonic…'

He yelped in shock, however, when Shadow suddenly grabbed him by both of his arms and pinned him down on the bed. He felt his face burn as he was face to face with the evil prince, his emerald green eyes staring straight at the other's ruby red ones.

"Listen here, SONIC," the ebony hedgehog snapped. "I am Prince Shadow Hex, third eldest son of King Doom Hex and one of the most lethal evil monsters of all of Evilopolis so don't you EVER mock/challenge me. You got that?!"

Sonic's ears were pinned as he felt frightened but it quickly vanished when he stared at the other monster's eyes.

Those…ruby red eyes of the part-vampire gave a certain glow that was rather…influential to his pair of eyes.

He knew only evil monsters had red eyes, since they mostly signify evil and blood, and thankfully, none of his siblings got the color so they could fit in with the good monsters of Goodville.

But…some instinct of his wanted to copy the redness of the eyes staring down at him. And that's what he did. Involuntarily, actually.

Slowly and little by little, his pupils began to swirl, his irises turning from green to red as his expression fell blank.

Shadow was shocked at the now snake eyes staring up at him as he tried to not let the other control him through Serpent Hypnosis but he failed. He soon found himself letting go of the azure hedgehog's arms.

"Shadow, what are you doing?!" Knuckles shouted, realizing that something strange was going on with the aura of the evil prince.

Fortunately, this snapped both hedgehogs out of their trances and Shadow immediately turned, rubbing his eyes as they widened.

"What the hell just fucking happened?!" he placed his hands on his head in panic. "What the fucking hell happened to me?!"

"No clue." Vector shrugged. "Ya suddenly went all quiet an' just let the kid go,"

Shadow growled and turned to Sonic, whose eyes snapped back to green as soon as he blinked before he groaned and rubbed his aching head.

"Ugh…" he hissed but, to his surprise, it wasn't because of the pain that he didn't feel but the fact that he was annoyed that he was beginning to use Serpent Hypnosis but not finish it. 'That was starting to feel right? even if I know that doing hypnosis is wrong…'

"What kind of Witch magic did you do, hedgehog?!" Shadow bellowed, snapping the other out of his thoughts.

"Uh, what?" Sonic scratched his head, confused.

"You fucking hypnotized me! What kind of spell did you fucking use?!"

"Um, nothing in the Book of Witch Spells and Curses said anything about hypnosis…"

"Then what did you fucking, you Witch?!"

"I…" Sonic paused, falling silent with wide eyes as he realized what he was about to do. 'No, Sonic, you already exposed your family name. No need to expose your family secret too…'

Shadow, on the other hand, was annoyed by the azure monster's silence so he wanted to proceed to reading his mind but was stopped when Knuckles gave a cough.

"Ahem." Knuckles caught their attention as he rubbed his hands together. "We don't have all day so can we get this check up over with?"

"I agree." Rouge nodded. "Let's just give the blue one a check up our own way then we'll leave you two be,"

Shadow just huffed and leaned by a wall, glaring at Sonic, who said nothing as the three monsters surrounded him to check his health.