The E-car drives silently through the narrow streets of the Christmas decorated Zermatt, before it disappears without warning in an underground bat cave. The driver opens the passenger door without a word, takes discreetly care of the luggage and already picks up the lift. „You are expected“. Not more, not less. Barely noticeable, we glide upwards, below us now only the colorful lights of the 1,610-meter-high Matterhorn village.