I can see how it might be confusing. No there is just one travel check between each location. If you succeed you go to the next location. So after location 0–1 you go to location 2–3 and so on. If you fail your travel check, you would go to whichever location matches the bit from your failed roll. The fog takes you to a random location.
I gotta see how I can find tune the language. Thank you!