It is supposed to help you when you're at the Grande Gang's hideout. You use it to help you get the gang members out of their hiding spot.
You ride the train and shoot the bandits who try to rob it. The intent of the game was to use the "concentration carbonate" sold by the peddler in Rock Ridge, but its application (slowing down the riders) is buggy at best.
Use the concentration one to play train robbery, and the invisible one at the hideout.
His map half, along with one that you find at the bank (once you beat the Train Robbery) leads you to the gang's hideout. The elixirs you buy (Transparency Tonic, Concentration Carbonate) will let you beat the outlaws in a shootout.
It is in the vent on the house next to wild west island
how can you find gold in wild-west island on poptropica.
in the wild west
use it to fix the clockyou use the oil can in wild west island to fix the bell
go on google and type in,"Poptropica cheats for wild west island"
You need the Transparency Tonic, one of the patent medicines sold by R.J. Earl in Rock Ridge. It makes you invisible long enough to reach the door to the hideout. You can also use the Concentration Carbonate in the ensuing gun battle, where it freezes the gang members once you have flushed them from cover.
he is no where, he is dead
its in the town
it is in nabooti island