The Rose Bath Riddle

Frozen to death in a scalding hot steam bath! That was the baffling fate that overtook Simon Corlaes, wealthy-and hated-chemical wizard. Jigger Masters, detective hired by Corlaes to protect him after receiving dearth threats, was unable to prevent the murder, but now it was his duty to track down the slayer. Discovering that liquid air of a searing, frigid temperature had been fed into Corlaes' shower from an adjoining laboratory, Jigger Masters must locate the culprit as additional murders of Corlaes' acquaintances stack up.