A development of Cloak & Dagger by Fata Morgana's Urs Hostettler and historian Werner Meyer.The new theme is time travel through the history of Germany and Switzerland. The envelopes represent different historical epochs. The players try to find and bring together historical persons and objects.There are two sets, one for Germany called Zeitreise in die Deutsche Geschichte and one for Switzerland called Zeitreise in die Schweizer Geschichte or Voyage dans le Temps de l'Histoire Suisse. - BoardGameGeek