THE small first-floor apartment in Derna became home away from home to Syrian migrant Ammar Kanaan after the risk of drowning kept him from attempting the dangerous Mediterranean crossing to Europe that has cost the lives of so many. After fleeing Syria two years ago to avoid military service, Kanaan had found a steady job in a pastry shop in the Libyan city and lived with two Sudanese roommates a few metres away from Derna's riverbed. But this month, the 19-year-old drowned with thousands of others when a flash flood washed away swathes of the city. Now, the plot where…