Siderius filled the pipe fully with the processed Red Candy leaves. He then tucked it inside his satchel. It was not yet time to use the Alchemy Palace. At least, not in a place that easily compromised like this.
The evening came and it was time for him to retrieve the blood vial from Finn.
Siderius went downstairs to find the two blacksmiths standing amongst the patrons.
George bowed his head slightly while Finn held a blood vial tightly in his hands. His left bicep was bandaged by a white piece of cloth. It was probably where the healer in the infirmary extracted its blood.
The people of this kingdom probably hadn't developed an effective way to extract blood yet. With magic, all the attention poured into the witches. Innovators that could discover these techniques would be completely sidelined by the public.
"Here's mine blood as you asked." Finn passed the vial to Siderius.