Every member of M.S.C. listened with exceptional focus, including Lupin and Sirius Black, who had long since left Hogwarts.
As Wizet explained, he also used small-scale Harmonic Space Charms and Transfiguration to present certain concepts more concretely, helping the M.S.C. members understand.
Because his magical knowledge was broad enough, even when someone failed to understand, he could quickly sort out his thoughts and explain it again in a different way.
It was not only the M.S.C. members who learned a great deal; as Wizet spoke, he also carefully organized what he had previously learned and considered, benefiting greatly himself.
A single weekend was clearly not enough to fully understand the "Dependency Connection Ritual" and the "Magic Revival Agent," so they agreed to continue the following weekend.
Over the next week, Neville began contacting his great-uncle Algie and borrowed quite a number of books from him.
He needed to ensure that he had enough knowledge stored away so that, when cultivating the magical plants required for the "Dependency Connection Ritual" and the "Magic Revival Agent," he could deal with any obstacles he might encounter.
Inspired by Neville, Hannah also wrote to her family, hoping to borrow some useful books from them.
Sirius also had Kreacher draw up a book list. The books mentioned on it all came from Number 12, Grimmauld Place—the books collected and preserved by the Black Family over the years.
As the current head of the Black Family, he could freely make use of all the resources the family had accumulated.
Apparently, Kreacher had initially objected strongly, only agreeing to cooperate after Sirius explained the situation.
Fred and George also contributed, beginning to write letters to their various relatives.
The Weasley Family's advantage was its sheer number of members, so they wanted to ask around among their relatives