From Bulbapedia, the community-driven Pokémon encyclopedia.
Ash to the Rescue by Tracey West is the twenty third book of the Pokémon series based on the popular TV show. It was published by Scholastic.
This book follows the plot of the anime episodes The Whistle Stop, Foul Weather Friends, and No Big Woop.
Team Rocket is rounding up Pokémon in the Johto region! They can't wait to get their greedy hands on Ledyba, Hoppip, and Wooper. It's up to Ash to protect these Pokémon — or so he thinks. These Pokémon have a plan of their own.