On occassion of its 50th anniversary, Artemide invites 50 architectural firms from Germany, Austria and Switzerland to design object boxes regarding the subject "light". Turkali Architekten`s contribution is called "Mystery of Shadow". The vernissage will take place on October, the 6th in Frankfurt am Main. The exhibition will also be open to the public in Vienna on October, the 14th and in Zurich on October, the 20th. All works will be published in a common book.