Solutions?

Saint Edward's face turned weird, for he was telling facts and not his own opinion, "Umm, I'm only saying what I know, noble Robin, and as far as I know, furnaces can't melt most of the known metals completely, except for iron and a few metals which close in density to iron, as for the stronger metals, they hardly become soft under the highest a furnace can provide, and the degree of ductility decreases as the level of the metal increases…

There are metals that even a sage level figure would find extremely hard to temper, and other known minerals that even sages cannot do anything about!"

Robin furrowed his eyebrows and jumped back his thoughts, and began to nod constantly and speak to himself, "I see... well... if this happens... ok ... ok ...."

He left everyone around him exchanging looks, not knowing what he was doing.

After about a minute Robin looked at the patriarch, "I'm sure we still have a lot of money left?"