Abstract: A riding emergency or fire escape apparatus mountable interior of a building for delivering an inhabitant exterior of the building for free fall descent to the ground. The apparatus of this invention exterior of the building essentially comprises plate members mounted in a recess provided in the wall of the building or spaced from the wall of the building a few inches so as not to detract from the architecture of the building. A base plate is provided with a vertically extending zig-zag track. A cover plate overlaying and planularly spaced from the base plate is formed with a vertically extending lineal track. The passenger transport mechanism is provided with a chair and is mountable interior of the building. Similarly arranged base and cover plates containing zig-zag tracks and lineal tracks respectively, are provided at each floor level interior of the building.