Something strange is happening on the quiet farm where Michel and his friends spend their holidays. For no apparent reason, the quiet cows suddenly rush like mad at the fence. What scared them? Or who? Could it be that mysterious stranger with long gray hair who rushed like an arrow at night in the depths of the yard? And this means that it’s time for the guys to start another investigation! And it will begin with a strange box with even stranger contents...

The story was also published under the title “The Secret of the Village Sorcerer.”