Roxy called to her friends.
"I have to go home," she said.
"I have to . . . um . . . study for tomorrow's math quiz!"
Roxy ran off.
Terrell scratched his head.
"We don't have a math quiz tomorrow."
Roxy flew over Metro City.
She saw a bus crash on West Street.
People were running in every direction, waving their arms and screaming.
"Those people must be running from the monster pets," thought Roxy.
She flew down to the street.
Monster pets were everywhere.
"My poodle is attacking me!" cried an old man.
"WOOF! WOOF! Grr!" The poodle snapped at the man's feet.
A cat swatted at an old lady's cane.
"Bad kitty!" cried the lady.
A large man ran from a tiny dog that was breathing fire.
"Run for your lives!" shouted the man.
"Rocket Girl!" cried a voice.
It was Detective Smith.
He was hiding behind a crashed car.
A woman was with him.
Roxy saw a dog with spiky fur bite a tire off the car.
The dog's collar was glowing.
Roxy flew over to the car.
The dog ran away.
"Hi, Detective," said Roxy.
"I think you need to take your dog to dog training school!"
"Ha-ha." Detective Smith pretended to laugh.
"That's not my dog, Rocket Girl."
"He's my dog," said a woman.
"His name is Ralphie."
"Does Ralphie always act like that?" asked Roxy.
"Of course not," said the woman. She smiled proudly.
"He wins awards all the time.
He was cute and furry this morning. But now . . ." The woman cried.
"He looks like a monster! Oh! Poor Ralphie!"
"How did this happen?" asked Detective Smith.
"Did Ralphie eat anything strange today?"
"No." The woman shook her head.
Roxy glanced around.
The monster pets were gone.
"I wonder where they went," she thought.
"What else did Ralphie do today?" asked Detective Smith.
The woman thought for a moment.
"After he ate, I took him to a wonderful new pet salon—Mr. Snippy's.
Ralphie got a haircut and a manicure.
Mr. Snippy is a lovely man.
He gave Ralphie a new collar that glows."
A man with a beard ran over.
He wore sunglasses and a white tennis outfit.
"Monster pets are invading Metro City Park!" the man shouted.
"A dog ate the tennis net.
Then a cat ate my racket!"
"Uh-oh," thought Roxy.
"Terrell, Mara, and Jack are at Metro City Park!"