Where do you catch a Haunter in Pokemon Platinum?

Answer 1

u can catch it at turn back cave....ooooh..creepy name!! or catch a gastly and make it evolve..u can find gastly in the old chateau. AND if you want a gengar, its at the old chateau, second floor from the right. (after u get the national pokedex, insert any GBA-series Pokemon game into the Nintendo ds's GBA cartridge slot.) i know where to get all the Pokemon!! :) hope this helps!! HAVE FUN ON POKEMON PLATINUM!!! IT ROX