Unable to reach the flying machine, Gargamel decides to build his own, which features pedals connected to bat-like wings.
After landing, Smurfette makes Flying Smurf promise to repair everything he destroyed during his first flight.
Gargamel makes a sarsaparilla cake and mixes a petrification elixir into it, then he leaves it in the forest for the Smurfs to find.
Before doing so, Papa Smurf leaves behind a caramel laced with a substance that will make Gargamel's body too soft to chase them.
To find the culprit, Papa Smurf sends a note to the Masked Smurfer, dipped in white ink.
Jokey Smurf's hands are white due to the ink; he had pied himself the first time to avert suspicion.
Everybody is scared, until Papa Smurf arrives and tells them it is just Puppy, the dog belonging to the wizard Homnibus.
The Smurfs leave to take Puppy back to Homnibus' home, but are secretly followed by Gargamel.
Papa Smurf asks about the locket, and Homnibus explains that whoever opens it will become Puppy's real master; the eavesdropping Gargamel hears all of this.
He makes a fake explosion sound, causing Gargamel to drop him and allowing him to free himself.