The Mystery of the Leaping Fish

Coke Ennyday, the scientific detective, divides his time into periods of ""Sleep"", ""Eat"", ""Dope"" and ""Drinks"". In fact, he overcomes every situation with drugs: consuming cocaine to increase his energy or injecting it in his opponents to incapacitate them. To help the police, he tracks down a contraband of opium (which he eagerly tastes) transported within ""leaping fishes"", saving a ""fish-blower"" girl from blackmail along the way.