Soon, Merlin changed from a middle-aged handsome guy to a white-bearded old man, and even the luxurious robe on his body became a white wizard's robe, this image looked much more pleasing to the eye, obviously from the original lean meat to an old piece of bacon.

At least the protagonist's appearance advantage has been preserved!

And Merlin's current appearance, except for the wand in his hand is too short, looks like the famous white-robed wizard - Gandalf (later white-robed version).

But even so, if such an old man could not do it, Zhang Jin would definitely lose him.

If you are a rookie who is new to magic, you may be happy to have an old grandfather to give you guidance and teaching, which is a bit similar to the genre of online novels, and even developed into systematic streams, golden fingers and the like.

For example, Harry Potter, who has just entered the wizarding world, needs such an old grandfather to guide him very much (the author has thought about writing such a novel, similar to Harry Potter's coming-of-age story), and in the original book, it is mainly Ron who plays a similar role to Harry. Weasley, it goes without saying how much influence Ron had on Harry. Of course, there are also Ron's family and various professors.

And this kind of old grandfather is much less attractive to Zhang Jin.

First of all, neither Zhang Jin nor Severus are students, and both of them already have a mature outlook on life and values, at this time, it will always feel very awkward to bring such a grandfather similar to a "master", not that he doesn't like to learn, but to the extent that Zhang Jin and Severus are really not something that Merlin can teach.

If Zhang Jin really just crossed over, he would also need such a guide, but these Severus have been solved, and Merlin is not like Ollivander who has extraordinary achievements in places that Zhang Jin does not understand, the difference between the two is only in magic and experience, even if it is the knowledge that Merlin has always been proud of, Zhang Jin is not necessarily worse than him.

Most of the wizards of Merlin's time were family inheritance, not a small number of apprentices, not to mention apprentices, apprentices are difficult to learn advanced magic except for coolies, and even many dark wizards accept apprentices purely to prepare a sacrifice.

The family inheritance is often limited by the collection within the family and the ability of the elders, so it is difficult to have a systematic and comprehensive knowledge of magic, so it is easy to teach a large number of wizards who are partial or have a weak foundation.

And Merlin is because of his rich experience and strong strength, so he has the most abundant knowledge of that era, so Merlin said that he can impart knowledge, in fact, he is helping Zhang Jin lay a solid foundation and fill loopholes.

However, since the establishment of Hogwarts School of Witchcraft and Wizardry, there is no more effective way to lay the foundation than learning in school, and Hogwarts itself has the most complete library in the entire British wizarding world, so even the long-established pure-blood families have given up the family cultivation method, and they have sent their children to school, and the effect is obviously higher than their own training.

At present, the last family in the wizarding world to insist on family cultivation is the Gaunt family, and it is almost everyone who knows how miserable they are, so even the purest Blake is from the academy.

Therefore, Zhang Jin's knowledge is not bad, and his foundation is very good.

Coupled with the development of more than a thousand years, although some magic inheritances have been severed, the research and discussion of magic, especially the application, have undoubtedly progressed, so it is really not certain who teaches whom Merlin and Zhang Jin.

And what can really make Zhang Jin feel good about Merlin is actually his perception of the strong, or further exploration, which can only be experienced by wizards who have reached this level, and what is lacking in the current wizarding world, no way, although the magic has improved as a whole, but the strong are obviously not as many as in ancient times.

The reason is also very simple, the road to the strong must need to fight, only some high-intensity battles can effectively hone the will of wizards, so whenever there is a major war, some top wizards will be born, such as the war between ancient wizards and magical beasts, the war between medieval wizards and goblins, and so on. And modern wizards really don't fight each other much except for the battles between two generations of Dark Lords in the past ten years, and even many wizards have forgotten how to fight, let alone explore to the next level.

In particular, Voldemort and the Death Eaters under his leadership were not interested in fighting each other at all, they were more of Avada...... Arvada ...... Arvada's, this kind of encounter-and-death combat style is not at all able to improve the level of wizards.

So Voldemort appeared and developed for more than ten years, and although many wizards died in the wizarding world, in addition to fewer people, even a strong man like Dumbledore was not born.

If this were placed in ancient times, the same number of wizards would have been able to give birth to at least five or six Dumbledore.

It is also because of this that wizards like Dumbledore and Voldemort who have already stepped into the apex of the wizarding world are no longer easy to fight, so they don't know how to go further, so there is Dumbledore's salted fish posture and Voldemort's move to split more souls.

Didn't Voldemort do this because there was no way ahead? If there is a clear road ahead, no one will want to walk on a muddy and dangerous path!

From this, we can also see that as a wizard, it should have been the ultimate goal and the driving force for progress to study magic and explore magic, but the wizards in the Harry Potter world really don't pursue much in this regard, and most of the wizards who have reached a certain level have changed to pursue ideals and beliefs, and there is no longer anything to pursue.

So when Zhang Jin got such an old man, what he wanted to know most was what Merlin could teach.

When Zhang Jin asked, Merlin said very arrogantly: "I can teach you how to explore the mysteries of magic, teach you to ripple in the ocean of magic, and even teach you how to stay young and immortal!" ”

Zhang Jin was always a little off track when Merlin said this, Severus seemed to have said something similar in Harry Potter's first Potions class, but none of the students in that group reached the level of Severus himself, and none of them came close!

Zhang Jin...... Expressionless...... "What about the specifics?" ”

Merlin...... Continue to be arrogant...... "Magic actually comes more from one's own soul, and the will determines the upper limit of magic power, the stronger the will, the better the magic will be used......"

Zhang Jin...... Expressionless...... "I know this." ”

Merlin...... Arrogant...... "Soul power determines the foundation of the wizard, and the will can determine the upper limit of the wizard, like you are because the will cannot reach the ......"

Zhang Jin ............ "I also know this!" ”

Merlin............

Zhang Jin: "Do you know how to improve your will?" For example, how to cultivate and so on? ”

Merlin............

Zhang Jin: "Do you know how to get rid of other wills?" ”

Merlin............

Zhang Jin: "You're really useless!" ”

Merlin...... Shame!