The Boundless River takes the reader into a unique world, the twilight zone between fact and fiction, science and imagination & on a journey which moves effortlessly from a time in prehistory, long before the existence of a European continent, to the present day. Along the way Deen encounters paleontologists, geologists, museum curators, taxidermists, fishermen and skippers who work the boats, who still see the Rhine as a living entity. From the mighty hippos that swam in its waters millions of years ago, to the weary salmon that saw their habitat slowly change & the aurochs that grazed its shores; from the primordial Steinheim Woman to the Roman general Corbulo who commanded settlements along its delta, to a young Goethe: in all of their stories the Rhine is ever present, sometimes as the main character, sometimes as an extra, as a theatre of war, a border between nations, a bathing spot, a killer, a vital transport route.