Dobby waited early in the base, and a sumptuous dinner had been set up on the round table, but it had cooled down a little after too long.

Neither Ivan nor Sirius paid any attention, and sat down to enjoy dinner as usual, chatting about interesting things in the leaky and shabby room.

"By the way, Mr. Black, can the magic of apparition be used in battle?" Ivan suddenly asked curiously.

He had always found Apparition to be a very useful form of magic, and if used in combat, it would give him an advantage in both attacking and dodging.

"No, I advise you not to try to do that!" Sirius shook his head, then continued with a serious expression.

"I think you should already know the dangers of this when you practice apparition! Even wizards who are proficient in this spell must always be focused and not distracted when casting this magic!

In the heat of battle, the caster can easily cause their own limbs to separate, and the enemies will not be kind enough to put your body back together! ”

"Of all the wizards I know, no one can do that." Sirius added.

"Dumbledore can't do it too?" Ivan asked.

Not at all!

Sirius was going to say this, but the words came to his lips and froze, because he wasn't sure either, the centenarian... The strongest white wizard in the wizarding world has always been able to easily do things that ordinary wizards would not dare to think of...

Ivan, on the other hand, was lost in thought, knowing full well that both Dumbledore and Voldemort could do this.

In the first battle of the Ministry of Magic, the two of them once disappeared and appeared out of thin air in battle, although it is uncertain whether it was done with phantom shifting, but it also proved the feasibility of using teleportation magic in battle.

I just don't know how many levels I have to practice to be able to do this...

Level six? Level seven? Or is it higher?

Ivan thought so.

After so many battles, Ivan already had a general idea of the strength of most wizards.

Normally, the fourth level in the system classification standard is the spell casting level of a normal adult wizard.

Level 5 is basically a professional level.

The average Auror, the highly trained enforcers in the wizarding market, and some dangerous dark wizards, the offensive magic they are good at is basically at this level.

The sixth-level magic above can only be reached by a very few wizards, representing the authority of a domain!

Ivan guessed that Professor McGonagall's Transfiguration Charm, and Professor Flitwick's combat magic was basically at this level.

As for Dumbledore and Voldemort, their magic level may be at level seven or even above!

Of course, the victory or defeat of two wizards in a battle depends not only on the amount of magic mastered and the level of proficiency.

Combat experience, presence, and other additional factors can all affect the final win or loss...

Ivan estimated that his strength level was about the upper level of the fifth level without using bloodline magic, and if he did it with all his strength, he should be able to reach the sixth level of combat power.

Sirius didn't know that Ivan had thought so much in just a few minutes, and was still trying to persuade Ivan not to try to do such a dangerous thing in battle.

Ivan reluctantly agreed, unless he was completely sure, he would not use this kind of unstable magic in battle.

After dinner, Ivan continued his potion experiments, and Sirius watched Ivan quietly work late into the night.

It wasn't until the third potion modification failed and the cauldron exploded that Sirius reminded him.

"Hals, you'd better rest early! Tomorrow I'll teach you how to use the illusion to get to the place you've been, and you need to keep your mind in good spirits, so as not to get separated during the practice, which is not a good feeling..."

Ivan paused, turned his head to look at Sirius, and nodded hesitantly.

......

In the alternation of practicing shapeshifting and improving potions, a week passed in a flash.

In a blink of an eye, it is the first day of September, the day of school.

Dobby had already bought all the magic books he needed for more than a dozen courses, as well as a large number of books on potions development.

Many of them were expensive, out-of-print books that Sirius had brought to Ivan on a trip back to the Black family's house.

Ivan packed all of these dozens of books into the suitcase of the Solidifying Extension Charm, and then cast the illusion shifts that he had learned these days.

Thinking of an alley near King's Cross Station, Ivan Lisso waved his wand and uttered a spell.

There was a burst of light and shadow, and when Ivan came back to his senses, he found that he had reached his destination.

"About one-ninth of the mana is consumed, and the mana consumption is really serious..."Ivan checked the status bar and noticed that the mana scale was missing a little.

He had never tried such a long-distance teleportation before, but he knew from Sirius that the farther away the phantom teleportation, the more mana would be consumed, and the more vague the impression of the destination, the more difficult it would be to cast the spell.

Ivan looked left and right to make sure that the teleportation was not seen by the Muggles, and then walked towards King's Cross Station with his suitcase.

Passing through a crowded aisle, Ivan was about to enter the station, but stumbled upon a large black dog hiding in a dark corner.

"Why did you come along? Or in a place with so many people? Aren't you afraid of being caught by the Aurors of the Ministry of Magic? Ivan walked over with the box, looked around, and said in a low voice.

"They don't know I'm an Animagus!" Sirius was disdainful, he never took the hunting Aurors seriously, and as long as he didn't expose himself, these idiots would never find him.

As for the purpose of coming over, he was naturally worried that Ivan would have an accident when he teleported such a long distance for the first time, and if Ivan was accidentally separated, no one else would help him get it back.

Despite thinking so, Sirius said with a frown. "I'm here to see Harry... I haven't seen him in a long time. ”

"Whatever you want, don't get too close when the time comes, just be seen by Peter!" Ivan shook his head, turned and walked into the station.

Passing through Platform Nine and Three-Quarters, the black and red Hogwarts trains are already on the platform, billowing white steam spewing out of the chimney...