On the first train ride to Hogwarts, Rowan didn't know anyone she sat with. At least, she didn't know them then and wouldn't until later in her school career. In general, the whole process of arriving at Hogwarts was unsurprising to Rowan, her brother have already described it to her in probably too much detail. Still, there were moments when she was amazed.
Sorted into Slytherin, Rowan quickly found her place among her peers in the same house. Cunning and quick-witted with an interesting sense of humor, she fit right in. What she really liked, though, about the Slytherins was their unending and fierce loyalness to their own that she too would adopt before she graduated. They cared for one another, for some didn't have anyone else to do that.
Rowan, over the years, developed proficiency in Transfiguration and Charms with good grades in Defense Against the Dark Arts and Ancient Studies. (History of Magic bored her too much, though there's a chance.) She found herself always enjoying changing the way things appeared, shifting them, even if Gamp's Law of Elemental Transfiguration frustrates her. Forever will she try to get around it.
Her third year, she met someone with whom she became very close to. Thick as thieves, they instantly connected, spending the Holidays at Hogwarts together that year. But it all went wrong once spring came again. The two had been hanging out and decided to take a little trip into the Forbidden Forest. As stupid as that is in itself, Rowan had heard some sixth years talking about a secret garden and convinced her friend to join her on an adventure. The pair made it to the garden fine – it was very beautiful – but the trip back was what proved to be disastrous. After having fallen asleep in the garden, where it seemed to be sunset for eternity, the second they exited the garden, night wrapped her cold arms around them. This was terrifying, sure, but what was worse was the creature that started chasing them through the forest. Rowan's friend sacrificed himself for her, allowing for Rowan to escape, but she came back, dragging the now unconscious boy back to the castle with help from the groundskeeper. He would survive, but Rowan would carry a feeling of guilt forever for bringing them there in the first place.
Rowan never saw the creature in its entirety. But in the few moments where she truly thought this was where she was going to die, she saw silver claws gleaming in the moonlight and the hulking figure of the monster that nearly killed her friend. It would traumatize her, becoming her boggart. It replaced fire, unbeknownst to her.
Things were calm fourth year, but by fifth, she had met Dominique Tyler. Unfortunately, Rowan was a bit oblivious at first and completely disregarded Dominique's advances on her, possibly offending her just a bit. But after the annual Yule Ball that year, the two got together, officially becoming a couple a couple days before Valentine's Day. They would be an item for the next year or so, up until Rowan's seventh year at Hogwarts. The two definitely got up to some antics, but Rowan really did love her and tried her best to show it. But, as everyone's greatest enemy, Time got between them and things ended. Fortunately, it wasn't ugly, and they remain on neutral/good terms.
Sixth year was also when Rowan met Bill, Roland, Ryan, Gen, Leah, Nessa, Cassandra, and, later, Okami through an internship at the Department of Mysteries. These became her closest friends at the time, though throughout her seventh year, she would grow apart from them slowly, acquainting herself with other people, including Ambrose. It would get worse when she moved back to the States. Through said internship, Rowan would also meet Ollie Fawley, the older brother of Enoch Fawley. Though brief, it was the first (but not last) time she would interact with the brothers.
After her time doing the internship at the Department of Mysteries, Rowan also briefly explored teaching when she was hired as a teacher for the FAA, or the Future Aurors Alliance. She very much enjoyed this, having a chance to show off her Slytherin tendencies. As well, she became closer with several of the members including Okami and Cassandra.
Ambrose – briefly mentioned above – was a witch Rowan officially met in her seventh year, having seen her around before but never talking. She thought she was pretty cute, and they attended a few balls together, but they only got together right before she graduated. They still keep in touch, though.
Rowan graduated Hogwarts as a skilled young witch who had a good shot of getting a solid job in the Ministry of Magic, but her heart lay elsewhere. Choosing to move back to the United States, the last few days of the school year were soaked with sadness and reflection. And, as much as Rowan is not the sentimental type, it was hard for her to say goodbye to all of those she had known and would likely not see again any time in the near future.