In all the awestricken throng that stood upon the Western Heights and gazed across the ruined town towards Castle Hill, none had feelings that corresponded wholly with those of Major Wardlaw. Scanning the field of operations through his glasses, his face twitched as if in actual pain. The attention of the uninformed lookers-on was constantly diverted from one thing to another, the wreck of the Castle, the crash of a roof as it collapsed in the town below, or the woolly clouds caused by bursting shrapnel, which still was being fired at intervals. But Wardlaw heeded none of the more picturesque effects. His mind, his powers of observation, his poignant feelings, were intent on causes, not effects. Every inch of the scene of operations was known to him. He knew the position and capacity of each fort and field battery. He could distinguish, where others knew no distinction, between the work of the big guns, the siege guns, howitzers, mortars, and field artillery. A sudden and terrific detonation told him that a huge naval gun had been landed from one of the great ships in the Admiralty Harbour. It must have been a work of enormous difficulty to get that gun ashore, during the night, and a still more terrific task to drag it into position to play with full effect upon Fort Warden. It was the work, as he knew, of British seamen--British seamen at their best, which happily still meant that there were none better in the world. But, more than all, his thoughts ran on Fort Warden--the Fort itself. Nearly all his life the study of fortification had obsessed him. While he looked at people, or even talked to them, his mind had been at work on parapets, banquettes, palisades, scarp and counter-scarp. All the technicology of the art of war and of the scientific defence of permanent positions was as familiar to this Engineer Officer as are household words to household people. Fort Warden, as already indicated, was the outcome of his concentrated mental labours and his soldier's instinct. In his younger days superior officers had looked rather coldly on his zeal. He had shown that he was a young man with ideas, and ideas are unwelcome to officials who love red tape and well-established grooves.