* Eve is not a Pokémon in the game. There is a Pokémon named Eevee, which is a Normal-type Pokémon known for its ability to evolve into different forms depending on the type of stone used on it.
* FireRed takes place in the Kanto region. This region does not have any Pokémon that evolve into a "Eve."
If you're thinking of a different Pokémon or have more information about the context, please let me know!