To say that “opposites attract” isn’t any more original, any less gray-bearded, than the words at the head of these pages. Generally, that sort of thing is figured in the worn-out, stale, familiarity-breeds-con-tempt realm of platitude, and at its unctuous repetition one comes to turn up his nose; but, once in a while, life has a habit of getting in a kink or a twist that gives you a jolt and a different side-light, and then, somehow, a thing like that rings as fresh and virile as though you had just heard it for the first time. As far as any one ever knew, Keating was the only one that ever got inside of Spirlaw’s shell, the only one that the road boss ever showed the slightest symptoms of caring a hang about--and yet, on the surface, between the two there was nothing in common. Where one was polished the other was rough; where one was weak the other was strong. Keating was small, thin, pale-faced, and he had a cough--a cough that had sent him West in a hurry without waiting for the other year that would have given him his engineer’s diploma from the college in the East. When the boy, he wasn’t much more than a boy, dropped off at Big Cloud, and Carleton read the letter he brought from one of the big Eastern operators, the super raised his eyebrows a little, looked him over and sent him out to Spirlaw. Afterwards, he spoke to Regan about him. “I didn’t know what to do with him, Tommy; but I had to do something, what? Any one with half an eye could tell that he had to be kept out of doors. Thought he might be able to help Spirlaw out a little as assistant, h’m? Guess he’ll pick up the work quick enough. He don’t look strong.” “Mabbe it’s just as well,” grinned the master mechanic. “He won’t be able to batter the gang any. One man doing that is enough--when it’s Spirlaw.” Spirlaw heard about it before he saw Keating, and he swore fervently. “What the hell!” he growled. “Think I’m runnin’ a nursery or an outdoor sanatorium? I guess I’ve got enough to do without lookin’ after sick kids, I guess I have. Fat lot of help he’ll be--help my eye! I don’t need no help.” But for all that, somehow, from the first minute when Keating got off the local freight, that stopped for him at the camp, and shoved out his hand to Spirlaw it was different--after that it was _all_ Keating as far as the road boss was concerned.