A Strangeness in My Mind by Orhan Pamuk Hamish Hamilton, 2015, 624 pages, $33 The House in Smyrna by Tatiana Salem Levy Scribe, 2015, 160 pages, $28 The Secret Son by Jenny Ackland Allen & Unwin, 2015, 336 pages, $30   At one point, the key character is Orhan Pamuk’s sprawling novel A Strangeness in My Mind muses that Istanbul is like the centre of the world, a conjunction of frontiers between continents, between history and the present, between what has been lost and what has been found. The theme of cultural and psychological borders recurs throughout A Strangeness in…