John Shors had just landed in Thailand when he called Denver for an interview. “I’m here at this crazy huge airport and need to take a taxi into the city,” he said from Suvarnabhumi International in Bangkok, having just left a family vacation in Hawaii earlier this month. “I have this side business where I take groups of my readers on literary tours to the settings of my novels.” At that moment, the Boulder-based author was preparing to lead a group of 12 through Thailand, Cambodia, Vietnam and Singapore over 17 days, with all expenses included in the roughly $6,900 per-person experience. The tours, which the 50-year-old conducts three or four times per year, trace the footsteps of characters from his books.