"It is exactly like you predicted, Your Highness," said Wuxin as he followed Xiao Moxian out of Tang's Paper. "The second prince is indeed one of the regular buyers of medium grade bark paper. This is solid, physical evidence now, isn't it?"
"Indeed. We are finally making some progress." Xiao Moxian said as he handed to Wuxin the account book he borrowed from the paper shop's owner. The entries documented when purchases were made for the second prince and how much was paid. "Keep this safe for me; I shall need it later. Oh, and these silver coins too."
He dropped five silver coins in Wuxin's palm. Wuxin wrapped them in a handkerchief so they would not get lost.
"I still don't understand why Your Highness asked for the silver coins that Second Prince paid with."
