I'd like to thank liriosdark0202 and Jack905 for reviewing, it means a lot to me! Now, I don't own Harry Potter or Frozen!

It was twenty five past eleven and I was in a Gryffindor common room, waiting for Harry and Ron to come out. My wand was in my pocket and I was in my nightgown. After what happened with Kristoff today, I tried to avoid Elsa as much as possible because I knew she was suspecting we were up to something. Well, we were and I was successful in avoiding her, but I just knew she'd question me about this in the morning. But then again, tomorrow we'll have nothing to talk about.

Harry and Ron finally came out of their dormitory. "Ready?" Harry asked. I nodded. "I can't believe you're going to do this Anna." I looked at the door of my dormitory to see Hermione standing there in a pink dressing gown, her face full of disappointment.

"You, go back to bed!" Ron hissed furiously. Well, it wasn't that Hermione bothered me, in fact, she was one of my closest friends, but she was making this stupid elaborate! We were going to be late for the duel! "I almost told your brother Percy. He's a prefect, he'd put a stop to all of this!" Hermione responded, apparently ignoring Ron's comment. She then looked at me.

"And Elsa, she knows you're planning something, so you'd better go back to bed!" "How do you know?" "It's obvious when you're avoiding her, she told me to observe you!" Hermione blurted out. Oh great. My sister was sending spies after me now to make sure I didn't do anything stupid? Not really wanting to deal with this at the moment, I got out of the common room with them following me.

"You really don't care about anyone, do you? If you get caught, you're going to lose all of the points I earned today for knowing everything about Changing Spells!" Hermione ranted. "Go away!" Ron commented. "She has a point, you know." I turned around to see Kristoff standing next to Hermione. "Fine, but remember while boarding on a train tomorrow, you're such…" The girl was about to go back into the common room, only to find that the portrait was empty! The Fat Lady must have one to visit someone.

"Oh, this is just great!" Kristoff commented. "We're coming with you!" Hermione declared. "No, you're not, Kristoff!" Ron told him. "We are going with you, and if Filch catches us, I'll say we tried to stop you but no one was listening!" Hermione retorted.

"You've got guts!" Ron complimented. Suddenly, I noticed someone lying on the floor. It was Neville! The said boy immediately woke up. "Thank goodness you found me! I didn't know the new password and I've been here for hours!" Neville explained. "The password's pig snout now, but the Fat Lady's gone." I told him and we were about to leave when he stopped us.

"Wait! Don't leave me, Bloody Baron's already passed here twice and I'm scared!" Ron looked at Neville, Kristoff and Hermione. "If we get caught because of you three, I won't stop until I learn that jelly leg curse Flitwick's told us about!" he said. "I can teach you that one!" Kristoff offered.

It was five minutes until midnight when we arrived at the trophy room. We were ready, waiting for Malfoy to arrive with our wands out. Five minutes passed, and he still wasn't here. After another five minutes, I started to think that Malfoy tricked us.

" Maybe he's chickened out." Harry suggested but I shook my head. What a prick that Draco Malfoy was! "Sniff around my sweet, they might be lurking somewhere in here." A voice said and I felt shivers run down my spine. It was Filch!

All of us looked at each other before sneaking off to armors around the huge trophy room. "Over here!" Harry told us quietly and we were slowly crawling towards the exit. I could actually hear Filch getting closer. "They're in here somewhere, probably hiding." At that moment, I tripped over armor's leg while Neville squeaked in fear. Let's just say the trophy had armor less now.

"RUN!" Harry didn't need to tell us that and Kristoff took my hand before we sprinted out of the room. What if we got caught? I didn't want to be expelled! By the time we stopped running to take a break, we were near a charms classroom.

"Um, Kristoff, you can let go now, you know." I told the boy who was still holding my hand while panting. "Sorry!" he said and let go, a bit of red on his face. Why though? "Wandering around at midnight, ickle firsties? Oh, a third year too! I so didn't expect you to break the rules, Mister Borgie! Naughty bunch, you'll get caught." Peeves cackled after he saw us.

"Would you please do us a favor and not tell anyone?" I pleaded with him. Peeves just kept cackling. "Get out of the way!" Kristoff swiped at Peeves angrily. "STUDENTS OUT OF BED! STUDENTS OUT OF BED, HERE ON THE SECOND FLOOR IN THE CHARMS CORRIDOR!" Peeves was shrieking. "Why you, it's not nice to rat out people like that!" I started angrily but Kristoff pulled me by my hand and we were running again somewhere.

Suddenly, there was a door in front of us, and they seemed like our only exit. Well, I'd rather face anything behind them than be expelled! Harry tried to open it. "That's it, we're done for!" Ron complained. He was so right!

"Let me through!" growled Hermione and got to the door. "Alohomora!" the door opened! "Hermione, you're a life savior!" I exclaimed and we all got in the room and closed the door behind us. "Alohomora?" Ron asked, completely clueless. "Standard Book of Spells, Grade One." Hermione stated. "It's for doors like these." Kristoff explained.

"Those doors were locked." Harry said when he and I watched the sight in front of us with wide eyes. "And for a good reason!" I added. Lying on the floor, there was a black creature which looked like a dog, only it had three heads!

Ron, Hermione, Kristoff and Neville finally noticed the creature. It woke up and was now growling at us. I could actually smell its breath! "RUN!" All of us screamed in a perfect sync before getting out of the room and quickly closing and locking the door. I could hear commotion coming from the room. That's what happens when you make the three headed dog mad!

It looked like Filch wasn't nearby. He was probably stuck on the second floor with Peeves, which was a good thing. "Where on earth have you been?" the Fat Lady asked us shocked when we came to the portrait. "Not important, pig snout!" Harry stated and we quickly ran in.

"What do they think they're doing, keeping a thing like that locked up in a school?" Ron asked in disbelief. "None of you have eyes, do you? Didn't you look down?" Hermione asked in the same tone with a bit of annoyance.

"The floor? We were a bit busy looking how many heads the dog had!" I exclaimed and Kristoff nodded. "In case you haven't noticed, there were three of them!" Ron added but Hermione ignored him. "It was guarding something; there was a trapdoor under its leg. Now, if you four don't mind, I'm going to bed before you find another way to get way to get us all killed, or worse, expelled!" Hermione stalked off.

"And it ends up we made her go with us. She needs to sort out her priorities!" Ron commented but no one said anything. "Night." I told Harry, Ron, Kristoff and Neville before going to the dormitory. "Are you kidding me? Getting expelled is worse than dying?" I asked Hermione who chuckled. "Sorry, I exaggerated a bit."

I couldn't help wondering that night. What was that dog guarding? Did it have something to do with a package from that vault in Gringotts?

I hope you liked it. I decided to add Kristoff to the chase here to serve as some sort of introduction because he Anna will be teaming up many times in the future. Please tell me if you have any ideas and what you think! Until next time!