What started as hobby for a Wisconsin man has developed into a burgeoning local business. Josh Brothers, a Dubuque native now living in Horicon, Wis., has always had a passion for trading cards. When a multiple sclerosis diagnosis about eight years ago forced him out of a career working in factories, he was able to devote more time to his hobby. He recently set up shop in a lower-level space behind 2115 John F. Kennedy Road in Dubuque under the name Card Castle LLC, selling a plethora of Pokemon cards. Brothers held a soft opening Feb. 1 and has been promoting to his Facebook following as he continues to fill the space and figure out logistics. He is planning a grand opening the first weekend of April.