"You can leave once you're done writing. Don't you still have to teach Thomas?" Kayson said, waving his hand to signal that the two could leave.
Then he sat down in a chair and looked at Clay, who was still in the office.
What was I supposed to do when I called Clay into my office?
"Professor... is there anything else for me?" Clay asked.
"There should have been, but it's gone now. Go back." Kayson waved for Clay to leave.
I tidied up the wine cabinet and saw that it was almost time... In short, it was time for dinner.
As soon as Kayson sat down in the Great Hall, Dumbledore raised an eyebrow at him. "You're not too late. You can still watch Harry and Thomas's duel contract here."
"Does this thing require a contract?" Kayson asked, somewhat puzzled.
"Of course, since blood is involved, a contract is necessary, so you will be the notary." Dumbledore raised an eyebrow. "After all, you are their referee."
Kayson frowned and said in a low voice, "You know I don't know ordinary magic."
" Unbreakable Vow is a kind of mysticism of a rule-based nature, not strictly speaking magic, so just go ahead and do as you please," Dumbledore explained.
"Hmm... okay." Kayson shrugged and slowly stood up.
Dumbledore followed him off the stage, bringing Harry and Thomas up to the platform on either side of Kayson.
"We need to use Unbreakable Vow to control the rules before you enter into a duel. If either of you believes that this duel is unnecessary, or that the shoe sole contract is unnecessary, you may leave on your own," Dumbledore said loudly.
Neither Harry nor Thomas had any objections.
Dumbledore gave Kayson a look, and the latter said, "Please hold each other's forearms."
Harry and Thomas complied, and Kayson, seeing this, drew his wand. "As your witness and duel referee, I will write your oaths this time. Any objections?"
Harry and Thomas said in unison, "No."
A series of experience orbs, shimmering with blue-green light, shot out from the tip of Kayson's wand and slowly wrapped around the two men's arms.
Kayson looked at Thomas and said, " Dean Thomas, would you be willing to invite Harry James Potter to a magical duel in the center of the Great Hall this Friday, and to make this Unbreakable Vow to bind both of you?"
Thomas nodded, and Kayson looked at Harry again, switched their names, and repeated the same words he had just spoken.
As soon as both sides agreed, a series of experience orbs surged from the tip of the staff and wrapped around the person's arm.
"As the referee, I will make the following rules for duels: First, no one may be absent from a duel for any reason. Second, in a duel to the death, both sides may only use their own magic, spells, and wands. They are not allowed to use any other alchemical tools, Fantastic Beasts, pre-set traps, or any other assistance."
"Third, the duel will consist of three rounds. After the three rounds, the duel must be terminated. Fourth, the duel is considered to be terminated under the following conditions: one party is effectively disarmed and loses their wand for more than three seconds; one party is effectively knocked down and unable to fight back for more than ten seconds; or one party voluntarily concedes and must clearly and loudly say the words 'I concede'."
"In Identity V, dignity requires a mutual commitment from both sides. No subjective or objective insulting actions are allowed during the duel to ensure the dignity and integrity of both parties."
As one after another of the experience orbs tightly bound the human's arms, they eventually began to merge into the human's flesh and blood.
Finally, Kayson's wand fell, and the Unbreakable Oath was officially fulfilled.
"How was it? Not that difficult, right?" Dumbledore raised an eyebrow and looked at Kayson, who had sat back down.
"Not bad, I actually have a knack for being a referee, huh?" Kayson said smugly, clearly very satisfied with the rules he had just mentioned.
"Very good, really very good." Dumbledore nodded. "It would be even better if you could return all that wine to me."
"One thing at a time." Kayson turned his head away.
Not long after I returned to the office, Orland and Thomas came over.
In the past, they could easily find any classroom, with blackboards, desks, and sacks of chalk. But nowadays, Hogwarts ' curfew rules are getting stricter and stricter, and Grindelwald can appear anywhere in Hogwarts at any time every night, making it extremely dangerous.
So when people were finally at their wits' end, Orland suddenly had a brilliant idea and took Thomas to Kayson's office.
The latter was very generous; he left a light on for them in the office throughout the long night, and lent them the blackboard and chalk before going upstairs to sleep.
"... Look, even at this hour, Professor Kayson hasn't forgotten to leave a light on for us. The professor still loves us!" Harry and Ron, wearing Invisibility Cloak, stealthily made their way to the alchemy office. Harry excitedly told Ron.
"Oh, why don't you take another look?" Ron sighed helplessly and Harry to Orland, who was lecturing Thomas in the distance.
"... so?" Harry was a little confused for a moment. "What happened?"
Ron pursed his lips. "This means... emmmmm... maybe the reason Professor Kayson's office lights are on has nothing to do with you, it's just to give two lost little wizards some light to learn magic." Ron stroked his chin, speaking very objectively.
"I was here first..." Harry said, on the verge of tears.
"Come on, Harry, judging by their appearance, they've probably arrived more than an hour earlier than us," Ron said helplessly, patting Harry on the shoulder.