Industrial District, Bideford.
While Gerald and Audrey are busy in the south. Riz busied himself in a certain workshop formerly known as 'Arnold Woodshop.' The size of the workshop has quadrupled more than it was in the past and has undergone multiple renovations. All thanks to the generous money supply by the king.
Because he hired Goban as his chief researcher in Gatharix Weapon Company, Arnold is the only person left that he can trust to do research and experiments in a field aside from weapons. Due to multiple joint works between him and Goban in the past, coupled with the education provided, this old man has his knowledge expanded beyond woodcraft.
On paper, Arnold is not officially employed by Riz but it's the opposite in reality. Not only does he pay the monthly wage to Arnold but he also slips in some SIN agents to the workshop as a worker. Their job is mainly to monitor Arnold, making sure no leak and no invention was stolen.