Under the Lilacs by Louisa May Alcott

Putting all care behind them, the young folks ran down the hill, with a very lively dog gambolling beside them, and took a delightfully tantalizing survey of the external charms of the big tent. But people were beginning to go in, and it was impossible to delay when they came round to the entrance.

Ben felt that now "his foot was on his native heath," and the superb air of indifference with which he threw down his dollar at the ticket-office, carelessly swept up the change, and strolled into the tent with his hands in his pockets, was so impressive that even big Sam repressed his excitement and meekly followed their leader, as he led them from cage to cage, doing the honors as if he owned the whole concern. Bab held tight to the flap of his jacket, staring about her with round eyes, and listening with little gasps of astonishment or delight to the roaring of lions, the snarling of tigers, the chatter of the monkeys, the groaning of camels, and the music of the very brass band shut up in a red bin.