What Flitwick most wanted to teach Manus was nothing like the knowledge found in books, which could be learned so easily.
Even Flitwick himself lacked the ability to express it clearly in words or language. Otherwise, he would certainly have committed it to writing and spread it far and wide.
Once any skill reached a sufficient height, it was never merely an isolated thing. At that level, one could see traces of that skill in other fields, even in every aspect of life.
What Flitwick had comprehended through dueling, the thing he was proudest of, was what he had gained after touching that level.
Manus had yet to realize this. After all, Flitwick had not shown any signs of it so far, and simple expectations were not out of place at this point. Nor could reasoning conjure an answer from nothing.
After parting with Flitwick, Manus walked back to the dormitory while using the magical bookshelf to sort the paper items in his Mental World.
He first categorized them by the different formats and different years of the wizarding tournaments they involved, then by their own types. Further subdivisions were based on newspaper dates, whether they focused on intelligence or analysis, and so on.
Before Manus even returned to the dormitory, that huge pile of paper items had been sorted into a clear and orderly arrangement. One glance was enough to tell him where to find what he wanted.
"I can finish reading these during my free time over the summer."
Manus scheduled those books for his leisure hours and temporarily pushed back the unfinished books from the British Library.
What he needed to do now was finish the task that should have been completed before the end of this school year: viewing the memories of the remaining two founders.