follow the pipes?

"Today I'll follow the pipes, and tomorrow I'll go to school. There's
always plenty of time to go to school," decided the little rascal at
last, shrugging his shoulders.

No sooner said than done. He started down the street, going like the
wind. On he ran, and louder grew the sounds of pipe and drum: pi-pi-pi,
pi-pi-pi, pi-pi-pi . . .zum, zum, zum, zum.

Suddenly, he found himself in a large square, full of people standing in
front of a little wooden building painted in brilliant colors.

"What is that house?" Pinocchio asked a little boy near him.

"Read the sign and you'll know."

"I'd like to read, but somehow I can't today."

"Oh, really? Then I'll read it to you. Know, then, that written in
letters of fire I see the words: GREAT MARIONETTE THEATER.

"When did the show start?"

"It is starting now."

"And how much does one pay to get in?"

"Four pennies."