“See here,” he said abruptly, “I’m afraid we’ll be run in if we keep this up much longer. I’ve been in one row already. Had to knock a man down who made caustic remarks about sneak thieves. What have you got hold of, anyway?” “Haven’t got hold of a thing,” I responded. “Well, then,” said Tom, “let’s cast back and take another look at the topography, just where the shutter fell.” Back we went over the ground once more, and stopped to examine cautiously the window with its green blind. “That’s a fourth story corner room,” said Tom reflectively, “and the house next to it is only three stories. Why, you blind man,” he went on suddenly, “only one side of the shutter fell, so the attack couldn’t have come from the front. It must have come from the back of the house. Let’s go round and see what is just behind this.” Round the square we circumnavigated, landing finally at a building some five stories high, whose first story showed the shelves and cluttered window of a second-hand book shop. Beside the shop a flight of stairs led to the upper stories. No sign gave evidence of any business carried on above the first. “Here goes for the book shop,” said Tom, and we marched in. A tall, stooping youth of exaggerated height, with lank and flaming red moustache, came wearily forward, stifling a cavernous yawn as he came. We repeated our stock inquiry to him. We were Colonials from Australia seeking our Cousin George, who worked in a laboratory. Did our friend with the red moustache know of any laboratory near? A gleam of interest lighted the slightly watery eyes. “H’I don’t rightly know w’ether h’it’s h’a laboritory h’or not,” he began, “but there’s some sort h’of a bloomin’ show h’occupies h’our ’ole fifth. H’I’ve never been h’ible to see h’inside h’it yet. You might try h’a shot h’at h’it ’owever.”