Fell Purpose

Bank Holiday Monday, and Zella Wilding, straight-A student at St Margaret's, prefect, future Head Girl, lies dead near Wormwood Scrubs prison. What was this good girl from a strict Christian family doing out there, dressed to kill, when she was supposed to be at a sleepover with friends? The mysteries only seem to proliferate as the investigation progresses, and the more Bill Slider knows, the less he understands about this very secret girl.  Book 12 of series.