"Wow," Roxy thought.
"I wonder if Robin is Thunderhawk."
She looked over at Detective Smith.
"Detective," Roxy said, "I think—"
The detective's phone rang.
"Hello? Oh no! We'll be right there!"
Detective Smith looked at Roxy.
"Thunderhawk is at Metro City Zoo.
What were you going to tell me?"
"Never mind," Roxy said.
Zoom! Roxy flew off.
When Roxy arrived at the zoo, people were running in every direction.
"There's a big hawk person!"
"Run for your lives!"
Roxy spotted Thunderhawk.
The villain was perched on top of the bird building.
She had large wings and a hawk mask.
"That's definitely Robin," Roxy thought.
"Thunderhawk!" she shouted.
Robin looked over.
"Go away, Rocket Girl! I'm freeing these birds!"
The villain smashed a hole in the building's roof.
Birds flew out.
"You can't do that!" Roxy shouted.
"Birds shouldn't be in cages!" Robin cried.
"They should be free!"
"You won't be free for much longer, Thunderhawk," Roxy said.
"You're going to jail!"
Roxy shot toward Robin.
She reached out to grab the villain.
Robin leaped. Roxy missed her.
"Hurricane wind!" Robin shouted.
She flapped her huge wings.
Whoo-whoo-whoosh!
A strong wind blew.
Roxy tried to stay where she was.
But the wind was too strong.
Roxy tumbled backward, crashing through the fence of a gorilla exhibit.
"Oof!" Roxy sat up and looked around.
A gorilla looked at her.
Then it jumped out of the exhibit and ran off.
"Uh-oh!" Roxy said.
She already heard people shouting and screaming.
"A gorilla's loose!"
"Run for your lives!"
Roxy crawled out of the exhibit.
Robin swooped over the crowd of screaming people.
"I have to stop Robin," Roxy thought.
"But that gorilla is on the loose!"
Roxy flew after the gorilla.
She saw a zookeeper approaching the animal.
The zookeeper glanced up at Roxy.
"Don't worry, Rocket Girl!
I'll take Melvin back to the gorilla exhibit.
Just stop that villain, please!"
Roxy flew over the zoo.
"Where did Robin go?" she thought.
Then she saw a stampede.
Elephants, rhinos, and other animals were chasing people all over the place!
Roxy heard laughter.
Robin was flying away.
"Good luck catching all those animals, Rocket Girl!"