To Die For - used book

Eighteen-year-old Nina has gone missing, and her mother, Maggie, is desperate. She begs her friend Connie to search for her daughter, although Connie has no expertise in detective work. She reluctantly agrees to do what she can, but when it's clear that Nina was abducted, it becomes a police investigation. Sergeant Bowering and Constable Fielding of the Brandon Police Service soon discover a number of suspects in the case, but proof is missing, and the clues are getting more confusing every day. Meanwhile, there is no sign of Nina anywhere. Should Connie stay out of it, as she is advised to do? But she made a promise to her friend; and she won't break her word, even when it becomes clear that by persisting in her quest, she puts herself in danger.