An argument was brewing on the other side: half a dozen Shapers surrounding a man in black coveralls. Trouble. Lindsay walked to the garden roofway and leaped up onto the ceiling. He pulled himself across the pathway with the ease of long habit, clinging deftly to knobs and foot-niches. He was forced to pause as a pack of three children raced past and over him, giggling excitedly. His sleeve lace came loose again.