Andrews spent the long summers of 1948 to 1951 travelling around the Peloponnese, the winters writing up in Athens. His journeys and the people he met are described vividly in The Flight of Ikaros (published 1959, reissued 1969 and 1984), one of the great and lasting books about Greece. As this overlapped with the Greek Civil War and its aftermath, it was a time of mistrust, particularly of foreigners (and especially of one making plans and notes in the hills), but he soon gained the trust of country people on both sides of the conflict. He became friends with a shepherd in the Geraneia (Γεράνεια) hills and become his child's koumbaros or member of the family and godfather. His time in Greece closed with an ascent of Mount Olympus, described in the book, the first by a westerner since the outbreak of the civil war. The fruit of his work, Castles of the Morea, was published in 1953 (reissued 2006).