THE MAIN STREET of Algiers was uncommonly broad, and yet crowded with Turks sitting out smoking tobacco from fountain-sized hubbly-bubblies, but Jack, Moseh, and the other slaves did not spend very much time there. Moseh darted through a pointy keyhole-arch so narrow that he had to turn sideways, and led the others into a roofless corridor of stone that was not much wider, forcing them to go in single file, and to plaster themselves up against walls whenever someone came towards them. It felt much like being in a back-hallway of some ancient building, save that when Jack looked up he could see a splinter of sky glaring between blank walls that rose ten to twenty yards above his head. Ladders and bridges had been set up between rooftops, joining the city’s terraces and roof-gardens into a private net-work strung high up above the ground. Sometimes Jack would see a black-swathed form flit from one side to the other. It was difficult to get a clear look at them, for they were dark and furtive as bats, but they seemed to be wearing the same sort of garment as Eliza had when Jack had met her beneath Vienna, and, in any event, from the way they moved he could tell they were women.