On their way to Cinnabar Island for his seventh Gym battle, Ash and his friends are walking through a forest when Pikachu hears a Pokémon’s cry. The group locates the source of the cry, an Eevee tied to a post inside a tree hollow. After scanning Eevee with his Pokédex, Ash wants to catch it, but Misty notices Eevee has a name-tag and address on it saying that its Trainer lives in Stone Town. Brock says that Stone Town is at the foot of Evolution Mountain, which contains Evolution stones that allow certain Pokémon to evolve. On their way to Stone Town, Ash’s Pokédex details that Eevee evolves via Evolution stones into Jolteon, Flareon, and Vaporeon. The group finds that the address leads them to a giant mansion. As they arrive in the backyard, they notice there is a garden party being held, and almost all of the Pokémon there are ones that evolve with Evolution stones. They even get the chance to see many of the stones out on display. Unbeknownst to everyone, Team Rocket spies from a hilltop, instantly noticing all of the evolved Pokémon, the stones, and the food; and they proceed to plan their next plot.
