Three:

"You know a dog is well-liked when you see it in a crown," said Roger.

"Nah, take a closer look," said Brian. "It's all old and tin and beaten. It must be some kind of joke."

"No collar, no identification," said Roger. "What should we call him?"

"I don't know," said Brian. "What is your name, abandoned dog?"

"It is Spot," said the dog.

"—wow, you talk," said Roger.

"I am... the King of the World."

"Where did you learn to talk?" said Brian.

"I learn in the big tent," said Spot.

"A circus dog," said Roger. "I bet he's a lost circus dog."

"Oui," said Spot. "In the big tent, in front of the crowd, no one can take their eyes off me. I fly through the air. I jump through the fire. I make the minion chase me and he empties the bucket onto the ringmaster. Then I wag the tail and the people laugh. Then I kiss Mademoiselle Princess and, in the poof of smoke, we turn into the King and Queen of the World."

"I bet there will be a big reward for your return," said Brian. "Abandoned dog, was the one-legged man with your circus? Do you remember the name of the circus you came from?"

"Ah. Oui. The circus I am from. She burn up. No survivors."

"A burned up circus?" said Brian. "No circus burned. We would have heard about a story like that."

"Ah. Oui. The circus I am from. She die of the plague. No survivors."

"Plague? Are you lying to me?" said Brian. "Stop lying, evil dog. Tell me where you're from."

"Ah. Oui. The circus I am from. I trade her in for the magic beans."

"I think this interview is over," said Roger. "Either he doesn't know, or he doesn't want to go back."

"I think he knows," said Brian. "But I won't let that stop me. I have all summer to find out which circus he comes from."

"Remind me again what you mean by 'circus,'" said Spot.