The photo-book 'Felwa' is a chronicle of transitions that explore an essential paradox of nature, in the context of the Veluwe region in the Netherlands, namely that change is the only constant. Structured like ripples in a pool, the book begins with references to the past examining our ancient emotional relationship with the world in terms of mythology and belief and ends with the scientific data based view we have today. Within these parameters we explore relationships to place ranging from the 9,000 years of human habitation of this region to one summer during which everything changed.As a connecting them throughout this book is the colour from extracted plant dyes. These colours bridging the different time zones like silent mediators reveal a parallel world with which we have coexisted since the beginning of time. Artis duo Arja Hop & Peter Svenson, based in Amsterdam, have been working on analogue photographic research projects since 2015. They use analogical film and its response to complex colours as a research tool making their analogical process simultaneously subject and medium.