Every member of M.S.C. listened with exceptional focus, and even Lupin and Sirius Black, who had left Hogwarts long ago, were no exception.
As Vizet explained, he also used a small-scale "Harmonious Space Charm" and Transfiguration to present some of the content in concrete form, helping the members of M.S.C. understand.
Because the magical knowledge he had dabbled in was comprehensive enough, even if someone did not understand, he could quickly sort out his thoughts and express it again in another way;
It was not only the members of M.S.C. who learned a great deal. In the process of explaining, Vizet also carefully organized what he had previously studied and considered, and benefited just as much.
To thoroughly understand the "Dependence Connection Ritual" and the "Magic Revival Agent," one weekend was clearly not enough, so they agreed to continue next weekend.
Over the following week, Neville began contacting his Uncle Algie and borrowed quite a few books from him;
He needed to make sure he had enough knowledge in reserve so that, when cultivating the Magical Plants required for the "Dependence Connection Ritual" and the "Magic Revival Agent," he could deal with any obstacles he might encounter.
Inspired by Neville, Hanna also wrote to her family, hoping to borrow some useful books from them.
Sirius Black also had Kreacher draw up a Booklist. The books mentioned on it all came from Grimmauld Place, which was to say the collection the Black Family had preserved to this day;
As the current head of the Black Family, he could make free use of the resources the Black Family had accumulated.
Apparently Kreacher had originally been very opposed, and only after Sirius Black explained the specific situation did Kreacher agree to cooperate.
Fred and George also contributed their strength and set about writing