Items in this area:
Potion
After the Avalanche members blow up the passage, head up the stairs.
You'll meet a Flower girl here. Be nice to the Flower girl and buy a
flower from her. Since Barett's gone, you'll have to fight the enemies
here alone. There's a Potion. to the southwest of the circular structure
(near the lamp posts). Walk south.
In this next part, you'll meet up with guards and have the choice of
running (bottom choice) or fighting (top choice). After a few more
encounters, Cloud'll jump onto the passing train and run into the
Avalanche gang. After talking to them, walk to the 'front' of the
screen and you'll jump off into another area. Talk to the people here
and one of the members (Jesse) will show you a picture of the Mako
plant on the train's screen. Approach Barett and you'll end up going
to the group's base.