Bog Monster
Written for the Death Eater Of The Month challenge.
Prompt: Regulus
Stop teasing your little brother, they said. But did Sirius ever listen? No, of course not. He refused to listen to what his parents told him, his mind working overtime to keep coming up with more ridiculous ways to tease, prank and harass poor Regulus.
This was unfortunate because Regulus admired his older brother. He looked up to him, hanging on his every word and believing everything he told him. So when Sirius told him there was a goblin living in the u bend, he believed it.
"Oh yes," Sirius told him in tones of mock seriousness. "His name is Yahooty. And when you sit down to poop, he'll come out of the pipes and grab your winky!" He then launched himself across the coffee table, snarling and grabbing at his terrified sibling.
Regulus leapt up, screaming, and ran from the living room, hearing Sirius' laughter floating down the hall. When he reached the bedroom, he quickly slammed the door, leaning against it and breathing heavily. For a moment he felt as though he might burst into tears. He loved his brother. He really did, but this was getting to be a bit much. It was always something with Sirius, and yet he couldn't shake the thought of entering the bathroom and being assaulted by some perverted goblin.
What if Sirius was right? What if there really was a goblin lurking in the u bend?
Regulus closed his eyes and tried very hard not to imagine a pale, slimy hand emerging from the toilet. "No," he said, his lips pursed in an angry but determined pout. He had to be brave and stand up to this hideous toilet monster. But not without the proper equipment.
He ventured upstairs into their parents bedroom, waiting until his mother and father were asleep before swiping his father's wand from the nightstand. He'd waited a long time to do this, and by now he really had to go to the bathroom. Though not before testing things out and making sure it was safe.
Little Regulus padded barefoot into the bathroom, his heart racing and his bowels churning. He slowly approached the toilet, his hand trembling as he lifted the lid. He then stretched out his arm, waving his father's wand over the toilet to see if the goblin would come out and grab it.
He looked up suddenly when he heard the sound of footsteps coming down the hall. There in the doorway was his brother, clad in grey pajamas, rubbing sleep from his eyes with one hand.
"Reg, what're you - "
Sirius never got to finish his sentence. His presence had startled his little brother into performing accidental magic, and as he looked up a towering wall of water rose from the toilet. He was given a moment to realize what was happening before the tidal wave swept him off his feet, carrying him down the hallway and leaving him sprawled on his back on the carpet.