"Your mule? The idea! Now, what would you do with a donkey on an advance car, I should like to know?"

"He might make things interesting for the rest of the crowd."

"I should say he would! But, from what little I know of the advance, you will have plenty to interest you without having an ill-tempered donkey along. Good night, Teddy. This is our last night with the show for a long time to come."

Phil made his way to his own berth, where he promptly went to sleep, putting from his mind until the morrow all thought of what lay before him.

Early the next morning both lads were awake; by the time their section pulled in at Saginaw they had nearly completed the packing of their personal baggage.

The rest was quickly accomplished, after they had eaten their breakfast under the cook tent. All preparations made, a final interview with Mr. Sparling had, and good-byes said, the Circus Boys boarded a train just as the strains of the circus band were borne to their ears.

"The parade is on," said Phil as their train moved out.

"And we are not there to ride in it. We'll have to get up some sort of a parade for Car Number Three, I'm thinking,"

smiled Teddy.

Late that afternoon the boys reached St. Paul.

After considerable searching about they finally found Car Number Three. Mr. Snowden was not on board, so, telling the porter who they were, the lads made themselves comfortable in the office of the car, a roomy compartment, nicely furnished, equipped with two folding berths, a desk, easy chairs and other conveniences.

"This is pretty soft, I'm thinking," decided Teddy.

"It is very nice, if that is what you mean," corrected Phil.

"That's what I mean. Do we live in here?"

"No; I should imagine we are to berth at the other end of the car."

"Let's go look at it."

The other end of the car comprised one long apartment with folding berths and benches for laying out the lithographs.

At the far end was a steam boiler, used in making paste with which to post the bills. That compartment had nothing either of elegance or comfort.

"Do the men sleep on those shelves up there?" questioned Teddy of the porter.

"Shelves, sir? Hi calls them berths, sir," answered the porter, who was an Englishman.

"Humph!"

"What do you think of our new home, Teddy?" smiled Phil.

"I've seen better," grumbled the Circus Boy. "I think I prefer the stateroom. Where's the boss?"

"He's out just now looking over the work."

Teddy, with a scowl on his face, went outside to take a look at the car from the outside. The car was a bright red, with the name of the Sparling Shows spread over its sides in gilded letters.

"If the inside were half as good-looking as the outside, it would be some car," was Teddy's conclusion, after walking all around the car. "I think I'll go back and join the show."

"Oh, be sensible, Teddy," chided Phil. "We shall be very comfortable after we once get settled. Here comes Mr. Snowden, I think."

Approaching them, the boys saw a thin, nervous-appearing man of perhaps forty-five years of age.

"Are you Mr. Snowden?" asked Phil, politely.

"Yes; what do you want?"

"I am Phil Forrest, and this is my friend, Teddy Tucker. We have come on to join the car."

Mr. Snowden looked the lads over critically.

"Humph!" he said. "Come inside."

Whether or not his survey of them had been satisfactory neither lad knew.

"Now, what are you going to do on this car?" demanded the car manager sharply, when they had seated themselves in his office.

"That is for you to say, sir. We are at your disposal,"

replied Phil.

"What can you do?"

"We do not know. This is entirely new work for us. We have been performers back with the show, you know."

"Humph! Nice bunch to ring in on an advertising car!" grunted the manager. "Either of you know how to put up paper?"

"I think not."

"What do you mean by paper?" interposed Teddy.

The manager groaned.

"You don't know what paper is?"

"No, sir."

"Paper is advertising matter, any kind of show bills that are posted on billboards, barns or any other old place where we get the chance. Everything is paper on an advertising car.

Forrest, I think I'll send you out on a country route tomorrow.

Know what a country route is?"

"I think so."

"Well, in case you do not, I will tell you. Every day we send out men to post bills through the country. The routes are laid out by the contracting agent long before we get to a town. You go out in a livery rig, and you will have to drive from thirty to forty miles a day. You are an aerial performer, are you not?"

"Yes, sir."

"Then you will be able to climb barns all right. We will call you Car Number Three's barn-climber. We'll see how good a performer you really are. For the first few days I will send you out with one of the billposters; after that you will have to go it alone. If you are no good, back you go. Understand?"

"I think so. I shall do the best I can."