Slipping in between the two cars they quickly got on top of the baggage. Any noise they might have made being deadened by the firing going on just below. The desperadoes redoubled their attack when they saw two of their number about to turn the fight in their favor, for it was perfectly clear what an advantage their position on the roof of the car would give them. They could not be hit themselves even if discovered, and it was certain death for Jim and the engineer for they would not be more than thirty feet from the two desperadoes. Even a tenderfoot would not miss at that distance and these men were not in that class. Neither Jim nor Bob Ketchel were standing so that they could catch a glimpse of the two men who were crawling along the top of the blind baggage. At that instant, Bill Sheehan made a rush for the top of the coal pile to get a chunk of ammunition of sufficient size and weight. CHAPTER III JIM TAKES A CHANCE As Sheehan mounted the coal, he caught a glimpse of one of the desperadoes on top of the car and yelled to Ketchel and Jim who jumped just in the nick of time, and by sheer luck not uncommon in battles, escaped unhurt. As for the fireman he took a novel way of making his escape, by diving into the shelving bank of coal and letting it slide over him. In the excitement of the flurry of firing he was able to do this. Jim and Ketchel both leaped from the same side of the engine and were protected by a slight cut alongside of the track. Bullets whirred and cut into the dirt around them. As they ran both of them sent a shot at the man on the near side of the blind baggage, with such good effect that he pitched to the ground with an injured leg. "Duck low, Jim," yelled the engineer; "we will beat them yet. I've got a scheme." "I'm with you," replied Jim. This was literally true, for he was right at the heels of the scurrying Bob. As they passed the barricade of stones, Ketchel gave it a quick, searching look, then in a few strides they got to cover in a culvert a number of yards in front of the pile of stone. By the help of a few ties they made a respectable fort. "So far, so well," said Ketchel, "but it won't do to stay here very long, for they will loot the train." "Nearly the whole gang is down there," cried Jim, "I can tell by the firing." "We've got to clear that barricade off the track and quick, too," declared the engineer. "It's our only hope." "Those stones are pretty heavy to lift off under fire," said Jim composedly, "but I guess we can make a go of it." "I like your nerve," said Ketchel, a gleam of admiration showing for an instant in his usually noncommittal face, "but I've got something here, that will help us in this hoisting business," and he thrust his hand into one of the pockets of his overalls. "What is it?" queried Jim. "Dynamite," replied the engineer, producing a small chunk of the same to view. "Won't it blow up the engine, too?" asked Jim.