"Don't worry Hermione! I'm going to get you out of here!" Harry yelled with more confidence than he felt. The Troll growled as it turned back towards Harry as he yelled. With a grunt the Troll hefted up its large wooden club and prepared to swing it down on Harry. He wasn't about to let that happen though. With a crack a ball of fire appeared in Harry's right hand. He chucked the fireball at the wooden club causing the dried wood to catch fire. The Troll suddenly feeling the heat of its club looked up at the flaming wood and bellowed in surprise. The large, smelly beast tossed the club away from itself in panic and stared at the flames in confusion. While the Troll was distracted Harry motioned for Hermione to crawl towards him. She hesitated for a moment before slowly crawling towards her friend, just as Hermione was crawling out from under the last sink the Troll spotted her and tried to grab her.
"No you don't!" Harry yelled conjuring up five Lumos orbs in front of the Trolls face. The orbs went from slightly bright in the lit up bathroom to blinding in an instant as Harry poured his mana into his spell. The Troll roared in pain as it covered its eyes and tried to swat the orbs of light away. Hermione rapidly ran to Harry and tried to cling to him. "Out the door Hermione!" Harry ordered as he pushed her towards the closed bathroom door.
"What about you?" Hermione asked only to get pushed harder towards the door.
"I'm following you, of course!" Harry stated as the Troll recovered its eyesight only for Harry to make the Lumos orbs flash brightly again. The beast roared again trying to swat at the orbs, but light had no mass and the Troll couldn't destroy the orbs by hitting them. Hermione wrenched open the bathroom door and held it open for Harry who slowly backed up and exited the bathroom. Just as the door closed Harry shifted his Lumos orbs through the color spectrum making each of the five orbs a different color. After the door clicked into place Harry began to switch each orb from normal brightness to blinding one by one, over and over again. Keeping this light show spell going from a distance was taxing, much more than Harry thought it would be as he felt his mana decreasing.
"Harry, we should run!" Hermione stated as she grabbed his arm and tried to drag him away.
"I'd love that, Hermione, but if I move from this spot I won't be able to keep the spell going." The confused roars and bellows of the Troll in the bathroom were a testament that Harry's spell was keeping the beast disorientated. "If you could get the Professors over here as soon as possible I'd greatly appreciate it."
"I can't just leave you! We should just run!" Hermione practically begged as she stared at the door of the bathroom.
"Once the spell stops the Troll is going to be enraged and it'll break out of the bathroom. If it does that there is no telling where it'll charge off to. That's why I need to keep the spell going while you get the Professors here." Harry tried to explain calmly but some strain seeped into his voice from having to split his focus between Hermione and his spell.
"Mr. Potter?! Ms. Granger?!" McGonagall exclaimed as she came charging around the corner with Flitwick and Snape in tow. "What on Earth are you doing here?!"
"Hermione was in the bathroom, didn't know about the Troll, I came to get her and take her to Ravenclaw Tower. Troll walked into the bathroom before I could get here and tried to kill Hermione. I'm distracting it with a variation of the Lumos Charm, but I can't keep it going for long." Harry hurriedly explained as the Troll's bellows could be heard echoing from the bathroom.
"Move aside, Mr. Potter, we'll handle it from here." Flitwick stated a look on his face Harry had never seen before. He looked like a man that knew he was going to have to do something unpleasant.
"Yes sir." Harry nodded as he moved aside and cancelled his spell. The three Professors opened the bathroom door and were able to see five differently colored orbs of light for a moment before they disappeared. The Troll, still covering its eyes, stood huddled in the far corner as if to escape the painful flashes of light.
The situation was resolved in a matter of moments after the door was opened. A single spell from each of the three Professors had the Troll knocked unconscious, bound up in chains, and sedated completely before the beast even fell to the floor. Snape and McGonagall approached the beast as Flitwick went to console the two students. The events afterwards were a bit of a blur for Harry, probably because he was suffering from a sudden drop in his mana from keeping his spell going for an extended period of time. But he and Hermione had explained why she was in the bathroom, McGonagall was already planning out Ron Weasley's punishment at that very moment, and how Harry had come to try and get her to safety after not being able to find the Professors. Harry lost points for his House at first but ended up with a net gain of twenty points after Flitwick and McGonagall were done. It was only after being taken back to Ravenclaw Tower, getting scolded by Penelope while she was hugging the life out of him, and finally getting to sleep for the night that Harry realized some very important details from his and Hermione's encounter with the Troll.