Instead of a text, a blank space opens this chapter. For only a blank space, locus desertus, is the proper spot to encounter Echo, to reflect on her essence, and experience the play of presence and absence in the visual and aural realms. Although not a part of the nonhuman world like an insect, a plant, or a stone, Echo and her myth actually deserve to figure in our catalogue of metamorphic stories perhaps more than any other creature. For Echo is a figure of the natural world that brings up the most fundamental question that this book is concerned with: that of the relationality between listener and sound, between human animals and the nonhuman world, and between matter and ideas.