After all, under its gaiety and brilliance Vienna has always been a centre of intrigue. The distinguished industrialist, the fair girl and the aggressive young man - although Superintendent McDonald tried to avoid studying his fellow-passengers, he simply couldn't help it. For him, it was difficult to adjust to being on holiday. He turned away deliberately. These people weren't his problem, he was on holiday - or so he thought. Set against the enchanting background of post war Vienna, with its beautiful palaces and gardens, its disenchanted residents and scars of war, E.C.R. Lorac constructs a characteristic detective story, sure to puzzle and excite. This exceedingly rare mystery, first published in 1956, makes its triumphant return to print for the first time since its original appearance.