Schtroumpfs Tome 1-Les Schtroumpfs Noirs; Le Schtroumpf Vola

Description: In a very distant country, lives a people of small blue-skinned humanoids called the Smurfs.
While going into the forest to cut wood, a Smurf is bitten by a Bzz fly. The reaction is immediate, causing little Smurf to transform. He loses his blue color, becomes all black, crazy and aggressive, while his language is limited to "GNAP!" ". The Black Smurf tries to contaminate the others by biting their tails, which causes a chain reaction, each Black Smurf transforming the other and thus spreading a real contagion.
The leader and eldest of the Smurfs, Papa Smurf, desperately searches for a cure, but with each try, instead of regaining Smurfs, he loses them. To find the cure, he must capture the Bzz fly and study it. One day, Papa Smurf, to feed her, makes her sniff tuberose pollen and the pollen turns her blue and harmless. The pollen will then serve as an antidote to Black Smurf disease. But he will in turn be contaminated by the bite of a false blue which accidentally infiltrated among the few blue Smurfs still free from the terrible disease.