you can not catch the ghosts but if you go to the second right room and go in and out you can see the girl turn around and go out the door, but when you go out of the room, you cant see the girl. Also there is a purple thing with red eyes staring at you in the room you went in to see the girl.
P.S how you see the girl is in the half of the last room while you are IN the second room to the right.
Ghosts are probably in the Old Chateau because that is one of the only places to catch them in Diamond, Pearl, and Platinum. Also, the Old Chateau is abandoned which explains why ghosts have taken up its residence. ~KKMG1
Giratina(Ghost & Dragon)
the girl and old guy are ghost i think you can talk to them
A ghost!!!!!!!!!!!!!!!!!!! ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You find it in Lost Tower (some ghost Pokemon if you catch them hold a cleanse tag as well).
You can catch Rotom by gettin the Secret Key in Mystery Gift.
NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
In the Old Chatuea in Enterna forest the non legendary Pokemon are Gastly and a very odd Gengar.You can also catch them near Solaceon Town at night
In Eterna Forest inside the Old Chateau is where there are a lot of Ghost Pokemon. But there's not only Ghost Pokemon but there is one Ghost Pokemon named Rotom in one of the rooms inside the TV. To get Rotom, go there after 8pm at night and thump the TV. Rotom will be at level 15.
There are two ghosts in the Old Chateau. The first ghost is the butler that can be found in the dining hall, and the second ghost is the little girl in the bedroom on the far right on the second floor.
You find ghost Pokemon and rotom. And if you have any Pokemon game in your gameboy slot you can also find gengar.
You cannot catch the ghost in the Pokemon Tower until you reveal what it really is.