“House of saliva and dust” is an art installation (model dimensions 3.00mx1.50m) on the redefinition of the abandoned arcade of Arsakeio in Athens. It is based on the hidden new life that the space acquired due to its decline. Through the spatial narration of a “nightmare tale” the parasitic habitation that invades the space is presented, creating new hybrid worlds. The installation aims to highlight the relationship between person and building as one suffering body.