Roberta Marie Ferguson was 19 when she left a camping trip at Sunnyside Campground on Cultus Lake, British Columbia, on the evening of August 24, 1988. Feeling feverish, she left around 8 p.m. on foot intending to hitchhike or catch a bus back to Surrey, where she lived with her older sister, Verl. She never made it home.

At the time she disappeared she wore a black shirt with a navy blue tank top, stretchy black pants rolled to her knees, dirty white running shoes, octagon-shaped sunglasses and carried an army-green backpack. A witness later reported seeing a young woman matching her description near Vedder Mountain and Cultus Lake roads and described a blond or light brown–haired man in a red sports car who pulled over; the woman appeared to back away from the vehicle as if scared. Foul play is suspected.

Over the years several leads were followed but remained unresolved. In the early 2000s convicted killer Terry Arnold allegedly claimed to have last seen her and directed police to a site; searches found nothing and he later recanted in a note before his death. DNA checks against victims of Robert Pickton produced no match. The case remains an open endangered missing person file with the Chilliwack RCMP.

Did anyone who knew Roberta or who was in the Cultus Lake area that night see her or the red sports car?