Sophie wants to play it safe this time: To make sure Felix doesn't get lost again, she puts him in her backpack on the trip to Switzerland; but no sooner do they arrive than it gets mixed up with that of a mountain hiker! Suddenly Felix finds himself at the foot of the Matterhorn. And this is only the first of his adventurous stops in Switzerland.What the little rabbit experiences between the Matterhorn and Basel, mountain festival and Alpstobede, Lake Geneva and the Rhine Falls, this story tells with four letters and surprising extras.