De avonturen van Bibi en Tina - Sabrina wordt ontvoerd

Bibi and Tina are going for a ride on a very hot day. They take a rest in the shade of the woods. While they are resting, Sabrina is kidnapped! Bibi finds a ransom letter. The kidnapper will only let Sabrina go if Bibi magics rain. But that is impossible because Bibi has temporarily lost her magic powers. Now Bibi and Tina have to find Sabrina without magic. This is a difficult task. Where have the kidnappers hidden Sabrina?