It was described as charcoal, but in reality, it was just a burned tree branch.
"Instead of a perfectly good brush, you're using this?" Si Jinhan sneered at her particular preference.
"I prefer it," countered Lin Ziyin, silencing him with three simple words.
Lin Ziyin, hard at work, was a sight to behold. Si Jinhan and Chu Suifeng, good partners as they were, kept quiet as they watched her work without rest. Yet, the moment she finished a diagram, they would snatch it up eagerly to examine it carefully.
Lin Ziyin worked with meticulous detail, even taking the time to describe the function of each device in depth.
"Get someone to hand these diagrams to the craftsmen, and have them made according to the specifics," Chu Suifeng instructed his men as soon as all the diagrams were ready.
"Yes, Prince."
"Lin Ziyin, what's this 'combined tactic' you speak of?" Si Jinhan asked, sitting upright.
Usually carefree, he appeared nearly unrecognizable when serious.