"Follow me, if you please."

Wondering what this young Cossack officer of the authoritative manner wished to do, the station-master, a burly little man, toddled at Jack's heels. The other officials had watched the short colloquy, and were now approaching the carriages, surprised that none of the train attendants had yet appeared. Meanwhile the station-master had himself ticked off the brief message to the next station. The instant it was complete Jack stepped to the door of the office and held up his hand. A dozen men in Cossack uniform sprang from the nearest carriage.

"Now, sir, you have been very obliging, and I am sorry that you and your clerk must consider yourselves my prisoners."

The station-master stared in stupefaction. Before his slow tongue could find words two of the bandits ran into the room, and while their comrades outside were dealing with the other officials, the poor man and his equally amazed clerk were securely tied up. At the same time Wang Shih and his men, slipping out of the opposite side of the train, had swarmed on to the goods train and surprised the driver and fireman, the only men to be found on it, relieving them of their coats and caps, and tying the men up. The garments were afterwards donned by two of the bandits who rode beside Jack on the engine. Leaving his men to destroy the telegraphic fittings, Jack hurried to the newly-captured engine. He released the brakes, then opened the regulator valve to its full extent. The train began to move westwards; Jack jumped to the ground, and a few seconds brought him to his own train. Glancing down the platform to see that all his men were on board, he started the engine, and it snorted out of the station just as one or two railway officials and the guard of the goods train came running up from an outbuilding where it is to be supposed they had been beguiling the time with vodka.

There was a grim smile on Jack's face as, leaning from the cab, he watched the tail of the empty goods train rapidly dwindling as it raced away on its uncontrolled journey westward. In a few minutes it would crash into the ruins of the bridge and the wreckage of the carriages already cut off from his own train. The resultant block would tax all the ingenuity of the railwaymen to clear away in time to get on Ah Lum's track, if the chief succeeded in reaching the appointed spot at the appointed time.

Jack examined his stock of fuel and the water in the tender tank. There was enough wood to serve for an hour's run, he thought; but he would require to water in half that time at the most. This was a necessity he had foreseen: how to surmount it must perforce be left to the chances of the journey. He could only face each difficulty as it arose. The pressing matter at present was to guard against an attempt to stop him at Pei-su-ho. Two miles from the station he had just left he stopped the train at a bridge. The half-dozen watchmen at this point were easily overpowered, though not before one of Jack's men was wounded; the telegraph wire was cut, and the rifles of the Russians were added to the stock. With those already captured the little party of Chunchuses had now some twenty Mausers and a fair supply of ammunition.

The pause offered another opportunity for bridge destruction, but the supply of dynamite cartridges was exhausted, and after what had been done it was not worth while to expend precious time; there was still ample work to do in providing against a dash of the Russians from the neighbourhood of Ninguta. The train once again started on its adventures, the line still clinging to the valley of the Ma-en-ho; a gradual ascent of some thirty miles, up which the engine snorted furiously, leading to one of the highest points touched by the railway in this district—a spur of the Chang-ling hills some 1200 feet above the sea.

Five minutes after the journey was resumed, Hi Lo, who was on the railed-in space on the right of the engine, drew Jack's attention to a small white puff of smoke in the direction of Imien-po, apparently no more than two or three miles behind, and easily visible from the higher position now attained. Jack started, swung out on the foot-board, and gazed intently down the hill.

"They are after us!" he ejaculated. "But how in the world did they manage it? They can never have got over the wreckage."

He looked long and earnestly. Then he turned to Hi Lo.