The Shark Arm Murders

This true story of one of the world's great unsolved murder cases begins one quiet day in Australia in 1935 when a giant Tiger shark, on display in the Coogee public baths, coughs up a tattooed arm. What follows is a spellbinding tale of detection set in the 1930s Sydney underworld. Sixty years later, author Alex Castles, a professor of law and a graduate of the University of Chicago, thinks he might know the solution to a riddle that has baffled police and scientists for decades.