The Sioux were armed with guns，from which came the reports，to which the passengers who were almost all armed，responded by revolver-shots.
The Indians had first mounted the engine，and half stunned the engineer and stoker with blows from their muskets.A Sioux chief，wishing to stop the train，but not knowing how to work the regulator，had opened wide instead of closing the steam-valve，and the locomotive was plunging forward with terrific velocity.
The Sioux had at the same time invaded the cars，skipping like enraged monkeys over the roofs，thrusting open the doors，and fighting hand to hand with the passengers.Penetrating the baggage-car，they pillaged it，throwing the trunks out of the train.The cries and shots were constant.
The travellers defended themselves bravely；some of the cars were barricaded，and sustained a siege，like moving forts，carried along at a speed of a hundred miles an hour.
Aouda behaved courageously from the first.She defended herself like a true heroine with a revolver，which she shot through the broken windows whenever a savage made his appearance.Twenty Sioux had fallen mortally wounded to the ground，and the wheels crushed those who fell upon the rails as if they had been worms.Several passengers，shot or stunned，lay on the seats.
It was necessary to put an end to the struggle，which had lasted for ten minutes，and which would result in the triumph of the Sioux if the train was not stopped.Fort Kearney station，where there was a garrison，was only two miles distant；but，that once passed，the Sioux would be masters of the train between Fort Kearney and the station beyond.
The conductor was fighting beside Mr Fogg，when he was shot and fell.At the same moment he cried，Unless the train is stopped in five minutes，we are lost！
It shall be stopped，said Phileas Fogg，preparing to rush from the car.
Stay，monsieur，cried Passepartout；I will go.
Mr Fogg had not time to stop the brave fellow，who，opening a door unperceived by the Indians，succeeded in slipping under the car；and while the struggle continued，and the balls whizzed across each other over his head，he made use of his old acrobatic experience，and with amazing agility worked his way under the cars，holding on to the chains，aiding himself by the brakes and edges of the sashes，creeping from one car to another with marvellous skill，and thus gaining the forward end of the train.
There，suspended by one hand between the baggage-car and the tender，with the other he loosened the safety chains；but，owing to the traction，he would never have succeeded in unscrewing the yoking-bar，had not a violent concussion jolted this bar out.The train，now detached from the engine，remained a little behind，whilst the locomotive rushed forward with increased speed.
Carried on by the force already acquired，the train still moved for several minutes；but the brakes were worked，and at last they stopped，less than a hundred feet from Kearney station.
The soldiers of the fort，attracted by the shots，hurried up；the Sioux had not expected them，and decamped in a body before the train entirely stopped.
But when the passengers counted each other on the station platform several were found missing；among others the courageous Frenchman，whose devotion had just saved them.
