In 1937 Jean Burns was widely reported as Australia’s first woman parachutist — but the newspapers were out by nearly half a century. For six months in 1890, Valerie and Gladys Van Tassel — under the management of “Professor” Park Van Tassel, their supposed brother — caused a sensation with their dazzling parachute jumps from trapezes suspended beneath crude hot air balloons thousands of feet in the air. But along with the spectacle came scandal and tragedy whose mysteries endure to this day.