Without directly answering the old wizard, Rein thought for a moment and asked:
"Oh yes, I heard you were collecting minerals before? Reasonably speaking, you specialize in earth witchcraft and shouldn't need so many rare minerals."
"Lord Rein, the situation is such that, years ago, alien spider swarms began to overrun the Shirendil Plateau, and dealing with these swarms is not an easy task. Even our school suffered significant casualties."
"And our library contains many schematics of construct creations, so we thought to try using puppets to counter the alien spider swarms. After experimenting, it turns out rock puppets and clay puppets are not as effective as metal puppets."
"I see," Rein nodded.
Meanwhile, he had gradually formed a rather mature plan in his mind.
