A/N: This is an AU in which Imogen and Constance are both witches, and attended Witch Training College together, until Mistress Broomhead has other ideas. I realise their irl age difference is too much for them to have been students together, but I figure since it's already an AU that I could bend that a bit and make them the same age.

"But P.E Miss Cackle? Is that really necessary at a school for Witches?" While Constance did foster the idea of 'a healthy mind and a healthy body' she wasn't sure going as far as having a whole subject on the matter was Miss Cackle's best idea.

"Constance, the matter is not up for discussion, it's important for the girls to have a well rounded education, they need some activity in their lives."

Constance opened her mouth to protest more, but before she could speak Miss Cackle cut her off, "She will be here this afternoon, I expect you to do your best to make her feel welcome."

"Very well, Miss Cackle," Constance accepted defeat, sometimes she just had to let Miss Cackle make her own decisions, she is the Head Mistress after all. Constance sighed, "What, may I ask, is this new teacher's name?"

Miss Cackle opened up the file she was carrying, scanning it she answered, "Imogen Drill."

"I-Imogen? Imogen Drill? Are you sure Miss Cackle?" Constance had not heard that name in a very long time, to say she was surprised was an understatement, "Let me see that file," she said taking the file from Miss Cackle's hands. Sure as sure could be it was her all right, 'Well…this shall be… interesting to say the least,' Constance thought, studying the photo attached to the top of the page.

"Is there a problem, Constance?"

Recognising her reaction was clearly raising questions she didn't want to answer, Constance answered, "No problem at all Miss Cackle."

"Very well," Miss Cackle sensed Constance was not telling her everything but she was quite used to that and decided to not think about it further, she just hoped her fearsome deputy wouldn't scare this new teacher off instantly, "be kind to her Constance," she added for good measure.

"No need to worry Miss Cackle, I am a professional, after all."

Imogen approached the gate, and looked up at the sign above it, "Miss Cackles Academy for Witches," she said, "this must be the place." She got off her bike, and walked through the gate. She was no stranger to teaching Witches, but she had to admit she was a little nervous. The first day of a new job anywhere was always unpredictable, it could so easily turn into either a great experience or a terrible one. As she approached the courtyard she noticed two women standing at the doorway to the castle, she walked over to them, "Welcome, you must be Imogen!" The woman said, with a warm cheery voice, "I'm Amelia Cackle, Head Mistress of this Academy."

Imogen held her hand out, to shake Miss Cackle's hand, "Imogen Drill, a pleasure to meet you Miss Cackle."

Imogen turned her attention to the other woman who spoke before she could say anything, "Constance Hardbroom, Deputy Head Mistress and Potions teacher."

Imogen took in the woman standing in front of her and wondered how she ever forgot that face, how it had been so long that this impressive, gorgeous, and formidable woman had been absent from her thoughts. Images, emotions, sensations, came rushing back into her mind, "Constance? Constance Hardbroom?" She repeated her name hoping it would help clear her mind, but instead she felt even more perplexed, and slightly light headed.

"You two know each other?" Miss Cackle asked, looking first at Constance then back to Imogen.

"My Constance Hardbroom?" She spoke without thinking, she was still trying to process what was happening.

"Imogen hurry up, our class starts in three minutes, we mustn't be late!" Constance exclaimed, shoving her spells' book into her bag.

"Yes, I know, I just need to find my book," Imogen said, semi-absentmindedly, looking around the room.

Constance quickly scanned the room, "It's over there, on the desk next to your potions book, now hurry up! I'm not about to get scolded by Mistress Broomhead again because we're late."

Imogen went over to the desk, quickly picked up her book and shoved it into her bag. The two girls then hurried down to the classroom.

The rest of the class was already walking into the room when they arrived, they had just made it. It did not go unnoticed though, "Cutting it a bit fine aren't we, Drill and Hardbroom? If I were you two I would be more attentive to when your class starts, especially after this morning."

"Yes, Mistress Broomhead," they both answered in unison, taking their seats.

Constance shot Imogen a look which said, 'I told you so.'

"Sorry," she whispered back.

The class began and throughout the lesson Constance tried her best to redeem herself and Imogen, she did not fancy another night in detention with Mistress Broomhead, the previous time nearly broke her. She also didn't want Imogen to suffer the same fate as her, becoming Broomhead's pincushion. She cared about her too much to let that happen. She looked at the girl next to her, she seemed so innocent, so naïve. Constance wondered why someone like that would ever want to spend time with her. She was so pure, and Constance so imperfect and broken.

Constance liked to spend her free periods in a tucked away in a corner of the library, she preferred to study without distractions, and found the isolation calming. She was working her way through her Advanced Spells homework when her concentration was broken, "Anyone would think you're avoiding me, lucky I'm not just anyone and know you better than that," Imogen said, sitting in the chair across from Constance.

Constance looked up at her companion, to acknowledge her, and then looked back at her spells book.

"Constance, you're not seriously still mad at me are you? I said I was sorry."

"I know you're sorry Imogen, I just can't risk getting into more trouble with Broomhead. She's always watching me, and if I step out of line just once that's it," She tugged at her long sleeves to cover her wrists and hands some more.

"I wish you would tell me what she's been doing to you Constance, you may not realise it but I am here for you."

"It's fine, really, you don't need to concern yourself with it," Constance said, turning her attention back to her homework.

Imogen relaxed in her chair, she knew something was happening and it frustrated her that Constance wasn't letting her help her. She decided not to push the issue, and joined Constance in working on their spells homework, she could at least connect with her over their school work.

Constance stood flustered, she honestly did not know what to say. How could Imogen Drill, her Imogen Drill be standing in front of her, and how in the entirety of the magical world had she ended up as a P.E teacher of all things, it seemed so ordinary, "I think we need to have a word, Imogen," she said, grabbing her arm. She looked back at Miss Cackle, "Some privacy, if you please Miss Cackle."

Miss Cackle nodded, she quickly and quietly went back inside to her office.

"It is you, isn't it? Constance Hardbroom! I can't believe this, what happened? Where have you been?" Imogen was delighted, if a little confused.

"I could ask you the same thing, Imogen," Constance replied sternly, folding her arms, "I understand it was a long time ago, but I hardly think you'll be able to justify why you just left, without a trace, not even a note!"

"Me? Leave you? Never!" Imogen countered, she had to admit, her memory was hazy, but she couldn't fathom how she could have been the one to just up and leave.

"That's not how I remember it."

"Constance, you have to believe me, I would never have just left you. I don't have an answer as to why but I honestly can't remember what happened."

Constance could tell Imogen felt she was telling the truth, in all the years she had known her she never knew her to be a liar.

"Very well, we shall endeavour to get to the bottom of this, let's get you settled in." Constance said, gesturing for Imogen to follow her inside, "Before we go inside, I just have one question, how on earth did a promising young witch such as yourself end up as a simple P.E teacher?"

"Constance what are you playing at, I'm not a witch!" Imogen laughed, and was met with a confused stare from Constance.

"What are you talking about, of course you are, we went to school together."

"No we didn't, we met at a teaching conference, and I think I would know, I am definitely not a witch," Imogen replied, still finding the idea ludicrous.

"Something is very wrong," Constance said, her face wearing a worried expression.

A/N: I hope the transitions between time periods are clear, I didn't want to just out right put those sections in italics.