text:  BBC World Service and now Witness History with me, Rachel Naylor. In the 1960s and 70s, the Mediterranean island of Cyprus was a volatile place. More than 2,000 people went missing during clashes, a coup and the Turkish invasion. One of them was Pavlos Nioklios. It's September 1974 and Greek Cypriot student Nick Nioklios gets a phone call from his brother in the middle of the night. PHONE RINGS