All that can be said of the picture is that one could recognize what it was meant for. The wheels were wobbly and no two of the same size, the windows zigzagged in uneven lines and were of varied shapes. The cow-catcher looked as if it could toss anything it might pick up high enough to join the cow that jumped over the moon. But it was unmistakably a train, and the long line of smoke pouring back over it from the tipsy smoke-stack showed that it was going at the top of its speed. Despite the straggling scratchy lines any art critic must acknowledge that it had in it that intangible quality known as life and "go."
It puzzled Will'm at first to know how to introduce himself into the picture so as to show that he was the one wanting a ride. Finally on top of one of the cars he drew a figure supposed to represent a boy, and after long thought, drew one just like it, except that the second figure wore a skirt. He didn't want to take the ride alone. He'd be almost afraid to go without Libby, and he knew very well that she'd like to go. She'd often played "S'posen" they were riding away off to the other side of the world on one of those trains which they watched nightly pass the sitting-room window.
He wished he could spell his name and hers. He knew only the letters with which each began, and he wasn't sure of either unless he could see the picture on the other side of the building block on which it was printed. The box of blocks was in the sitting-room closet. He brought it out, emptied it on the rug and searched until he found the block bearing the picture of a lion. That was the king of beasts, and the L on the other side which stood for Lion, stood also for Libby. Very slowly and painstakingly he copied the letter on his drawing, placing it directly across the girl's skirt so that there could be no mistake. Then he pawed over the blocks till he found the one with the picture of a whale. That was the king of fishes, and the W on the other side which stood for Whale, stood also for William. He tried putting the W across the boy, but as each leg was represented by one straight line only, bent at right angles at the bottom to make a foot, the result was confusing. He rubbed out the legs, made them anew, and put the W over the boy's head, drawing a thin line from the end of the W to the crossed scratches representing fingers. That plainly showed that the Boy and the W were one and the same, although it gave to the unenlightened the idea that the picture had something to do with flying a kite. Then he rubbed out the L on Libby's skirt and placed it over her head, likewise connecting her letter with her fingers.