The seventh envelope contains the elements for My City, Chapter 7: The Railroad, Episodes 19, 20 & 21. Opening up the envelope will give you access to everything you need for the next 3 games. But I will reveal the information needed for each of those episodes one at a time, under the individual spoiler tags below.
Chapter 7 – The Railroad
End of Chapter 7
That is the end of Chapter 7. The game concludes in Chapter