--Regulus POV--
Regulus knew that it was going to be a good week. Last week at the Slughorn's party, he met the famous reculse of his house. He went due to social courtesy but was already bored by the time, the other boy came in the room. Anyone would be, when sitting next to them would be such a small minded shining pixie. He pitied their once rival House Greengrass and how low they have fallen to connect with such an attention seeking banshee. But, what else can they do if their heir is a useless glitter loving idiot.
But, this all has nothing to do with his mood which changed the moment he met O'Shea Wyllt. Frankly, the boy was an enigma. He kept to himself, never really if ever talked to anyone and was almost as if a non existent entity in any room. What surprised him though was seeing him talk to Lily Evans and Damocles Belby. Both of them where potion freaks and rarely had he ever seen them talking with him, but it seemed that they were friends.
Since he was bored out of his mind either way, he thought that why shouldn't he try applying his mind to something else and so he started talking to the Wyllt boy the moment he sat on the same table as him. At first he was surprised when he saw the normal behaviour of his classmate as he was quite brisk when he talked earlier with his classmates but the real surprise came when the topic of discussion turned towards magic. The boy knew far more magic then even he has learned and he was quite certain that he has learnt everything Hogwarts can teach him till the final graduation of seventh year. Even with the backing of house Black, he was quite certain he will never be able to reach a level the boy was at that moment, in a few years at least.
A young wizard who can impress him and that too form his own house, it was worth making a new friend. They talked late that day and enjoyed a good evening in the presence of his peers. One of the few times he relished the opportunity to be at the Slug Club.
He wanted to talk about joining a dueling club with O'Shea earlier but somehow the boy disappeared after the party and the next day he was not present in the whole castle when he searched for him so he thought about talking to him about the club in class.
As he was talking to his usual friends he saw him come in and sit at his usual place in the corner at the back bench, he decided to breach the topic. He went to him and told him about his ideas. Surprisingly he was rejected but the reason of a surprise was not the rejection but rather the reason of the rejection. He said that he will learn curse breaking from someone by internship in the summer break.
Curse breaking was very dangerous so when parents sent someone for such internship, they will choose the best. He knew enough about the Wyllt family that he was certain that this family was not short of coins. He was quite certain that the Wyllt family was at least as rich as a pureblood and old family.
This topic interested him but before he can even talk about it, he was interrupted from Smith talking about the dark lord and the power he gives his followers. He did not say so clearly but rather insinuated that to Wyllt.
Then one thing led to another and finally ended at the current situation where four boys were pointing their wands at O'Shea firing some nasty jinxes. He interrupted one of his friends by knocking his wand arm in the air and tackling him but the other boys had already fired their spells by then. As he was standing closest to O'Shea he saw everything in slow motion.
He saw O'Shea pull out his wand. He expected to see him cast a shield but he was surprised when the other guy simply cast of flurry of Sectumsempra and some weird spells which shone in the air almost as if someone was swinging a sword.
For a moment the whole class turned to see the action but it ended before it even begun. He was from a pure blood house and quite certain that he has seen enough violence. What with Bellatrix teaching the rest of the family the dark arts she learnt from her new master. But the spells O'Shea used was something else not just simple regular dark magic not even just magic but swordplay as it looked like he was swinging a sword. It was almost as if a painting was drawn, the way his wand moved was almost as if he was composing a melody in an orchestra, a very violent tune nonetheless.
A few breaths latter when his mind moved from one topic to another, the three boys were down on the floor twisted at unbearable angles with broken bones all over the body.
Somehow a transparent shied or rather a reflective spell has sprung up in front of O'Shea and the spells the boys fired earlier were reflected somewhere above on the top of the classroom. On the other hand, the spells he used, Sectumsempra has left deep gashes all over the other guys. But it was the other spell which he used without chanting whose effect was more pronounced and barbarous. Smith has his wand hands separated and twitching seperately at a distance from his shoulders as it was almost as if someone has sawed off his arm from the shoulder with a blade.
For a moment, the whole class was silent. Thomas Smith was shocked as if the pain hasn't registered. By the moment pain registered and shock wore off, he screamed once with his face contorted with pain and passed out with a few streams of blood still gushing from his shoulders. Then one of the victims whose bones was probably broken at more than a few iffy joints started howling. In a second, it was mayhem all around.