After you beat the Pokemon league.
At indigo plateau she is the weakest elite four
beat the team rocket people there with him
Did you deliver the ruby and sapphire yet to celio if not you need to before you can face the elite four.
There is no lost tower.
either your confused or way out their shes on island 3 in the berry forest She later appears in the ice cave after you beat the Elite 4 the 1st time
You can find Murkrow in the Lost Cave in Pokémon FireRed.
Get a tutorial on you tube
Just keep running around and you will eventually find one. It does take a while for Pokemon to appear in the lost cave. Murkrow is RARE in the lost cave so you won't find it easily. It can only be caught in the Firered lost cave and Misdreavus can only be caught in the Leafgreen Lost cave. You cannot get Misdreavus anywhere in Firered. It is absolutely exclusive to Leafgreen.
loreli rory
It's in the lost cave
The only dark type Pokemon you can get in firered is murkrow which happens to be in lost cave on five island.
In the lost cave in island 5