The place works like Turnback Cave, which appeared in Pokemon Diamond, Pearl and Platinum versions. At the end, you will find one of the seven sages and he tells you that he wanted to give a Volcarona to Ghetsis but he says you can have it. Then, go into the next room and catch a LV 70 Volcarona
In the main storyline in Pokemon black King N's castle appears after you beat the last member of the elite four.
Volcarona is inside Relic Castle.
N's Castle, dragonspiral tower
yes and go to the Pokemon centre near the Pokemon league talk to the team plasma guy and he will take you to ns castle
In N's Castle where Zoroark went
if your talking about the primary ones (zekrom, reshiram) at N's castle; after the Pokemon leave N's castle gets attached to the league. then through a series of fights you can catch zekrom or reshiram. :) - after the Pokemon league.
ns castle
In the main storyline in Pokemon black King N's castle appears after you beat the last member of the elite four.
relic castle
only in pokemon black. (n's castle)
It can be found in the Relic Castle in Pokemon Black Or White
You find N in Pokemon black past victory road go to the statue in the Pokemon league press a on your system the statue will go down proceed through the castle go through all the talking and there you have it.
Relic Castle in the desert
After the elite four you will find him in the castle.
n's castle after the elite four
you have to get to the bottom
Volcarona is inside Relic Castle.