Cario is an Egyptian desert-city in A Darkling Plain. The city moves across the northern-half of Africa. Cairo has an extensive pipe network that was used when cairo was hunting in the region far south were there is lots of rain. After Fishcake finds the remains of The Stalker Fang he reasembles her in Cario. However he lies about the eyes as she would be far more dangerous if she could see. Eventually the two of them leave Cairo to return to Brighton to steal a limpet. Cairo is described to be a rough place.