As Rama approaches perihelion, and on their final expedition, the crew decide to visit the city closest to their point of entry, christened "London", and use a laser to cut open one of the "buildings" to see what it houses. They discover transparent pedestals containing holograms of various artefacts, which they theorise are used by the Ramans as templates for creating tools and other objects. One hologram appears to be a uniform with bandoliers, straps and pockets that suggests the size and shape of the Ramans. As the crew photographs some of the holograms, the biots begin returning to the cylindrical sea, where they are recycled by aquatic biots ('sharks') and the six striplights that illuminate Rama's interior start to dim, prompting the explorers to leave Rama and to re-board "Endeavour".