In May, 1857, British power at Delhi was represented by three regiments of sepoy infantry, and a sepoy battery of artillery, under the command of Brigadier Graves. There were no European troops at Delhi, except the regimental officers and sergeants attached to each corps, and nine Europeans who had charge of the British magazine in the heart of the city, with a host of Asiatic subordinates. None of the sepoys had as yet shown any sign of disaffection, but it will appear hereafter that they had all caught the contagion of mutiny, but kept their secret until the moment for action arrived. [Sidenote: Cantonment on the Ridge.] The sepoy regiments were cantoned on a rising ground, known as the Ridge, which was situated about a mile to the north of Delhi, and overlooked the whole city. The bungalows of the European officers were scattered about the vicinity. At the furthest end of the Ridge was a strong position, known as Flagstaff Tower. Further away to the left, the river Jumna skirted the eastern side of Delhi; and the mutineers from Meerut were expected to enter the city in this direction by a bridge. [Sidenote: Mutineers expected.] Brigadier Graves had but a short warning. The mutineers would certainly travel all night, and would probably arrive early on the Monday morning. It was useless to cut away the bridge, as the hot weather was at its height, and the stream was easily fordable. Everything depended on the loyalty of the sepoys at Delhi. So long as they remained staunch, the brigadier might hope to defend the city and cantonment against the mutineers from Meerut. If, however, the sepoys at Delhi joined the rebels, there was nothing to be done but to await the European reinforcements which might be expected from Meerut. Meanwhile, the brigadier sent circulars to all non-military residents to take refuge in Flagstaff Tower. [Sidenote: Preparations for battle.] The three regiments of sepoy infantry, and the battery of sepoy artillery, were ordered out. The guns were loaded, and every preparation made for the coming battle. The brigadier addressed the men in stirring language. Now was the time, he said, for the sepoys at Delhi to show their loyalty to the Company. The sepoys responded with loud cheers. One regiment in particular eagerly demanded to be led against the mutineers; and the brigadier marched them out to fight the rebels, leaving the two other regiments on the Ridge. [Sidenote: Treachery.] Presently the cavalry from Meerut were seen galloping towards the city. After them at no great distance was a large mass of rebel infantry, with their bayonets gleaming in the sun, and their red coats soiled by the dust of the night march. Neither horse nor foot showed the slightest hesitation. As the cavalry approached the brigadier ordered his men to fire. The rattle of musketry followed, but not a single trooper fell from his horse. The faithful sepoys had fired in the air. [Sidenote: Firing in the air.]