"Last night we did the array in the same way he did," Kong slowly said while closely inspecting something through the shimmering surface of the scrying mirror, "but we jumped over a little matter and didn't notice it before."
"Which is?" The headmaster pressed, his patience wearing thin. Kong said many things but failed to give any answer to what the headmaster asked about. The master of the academy was still mentally tallying the cost of his ruined shrubs and shattered masonry.
"He didn't use all the materials he got from you yesterday," Kong was now confident about this point before adding, his voice dropping an octave in disbelief, "he is just using ten percent of the entire amount!"
"Only ten percent?!! How come?!" The headmaster finally realised what Kong meant. His jaw practically dropped. He had handed William a wealth of high-grade obsidian, silver wire, and spirit stones, assuming the boy would need every scrap to fuel such a high-level concealment formation.
