"It's the girls' bathroom!" Harry gasped. "Hermione!" they said together.

It was the last thing they wanted to do, but what choice did they have? Wheeling around, they sprinted back to the door and turned the key, fumbling in their panic. Harry pulled the door open and they ran inside.

Hermione Granger was shrinking against the wall opposite, looking as if she was about to faint. The troll was advancing on her, knocking the sinks off the walls as it went.

"Confuse it!" Harry said desperately to Ron, and, seizing a tap, he threw it as hard as he could against the wall.

The troll stopped a few feet from Hermione. It lumbered around, blinking stupidly, to see what had made the noise. Its mean little eyes saw Harry. It hesitated, then made for him instead, lifting its club as it
went.

"Oy, pea-brain!" yelled Ron from the other side of the chamber, and he threw a metal pipe at it. The troll didn't even seem to notice the pipe hitting its shoulder, but it heard the yell and paused again, turning
its ugly snout toward Ron instead, giving Harry time to run around it.

"Come on, run, run!" Harry yelled at Hermione, trying to pull her toward the door, but she couldn't move, she was still flat against the wall,
her mouth open with terror.

"Hay Shreak! Get out of my swamp!" Amelia shouted throwing pieces of broken sink at the troll and making as much noise as possible. Hermione would have facepalmed if she wasn't so terrified. She had never really thought about what would happen if she needed to be reused, but she never would have thought it would be from a troll by Harry Potter a rude redhead and a pop-culture referencing metamorphmagus. Amelia had read lots of books about magical bening since she had been to Hogwabeingd and knew what to do if a troll was attacking. COnfuse it make noise and then run like hell. 

The shouting and the echoes seemed to be driving the troll berserk. It roared again and started toward Ron, who was nearest and had no way to escape.

Harry then did something that was both very brave and very stupid: He took a great running jump and managed to fasten his arms around the troll's neck from behind. The troll couldn't feel Harry hanging there, but even a troll will notice if you stick a long bit of wood up its nose, and Harry's wand had still been in his hand when he'd jumped -- it had gone straight up one of the troll's nostrils.

Howling with pain, the troll twisted and flailed its club, with Harry clinging on for dear life; any second, the troll was going to rip him