Owww how cool this is! This works of yours has a much deeper meanng than I would've expected. Nice!
Some years ago, I received a book of more than 1600 pages with very tiny font which collects a bunch of Russian stories and books into one. I didn't read it yet. But what I just did: I checked if the "Journey From Petersburg to Moscow" was part of this book. It doesn't seem so. I noticed it can be purchased and found some summary and one of the chapters online. Will have a read a may purchase the book. You got me interested 😉
look at your big book with Russian literature, maybe there is "Moscow-Petushki". Pseudo-autobiographical postmodern prose poem by the Russian writer and satirist Venedikt Erofeev. I can recommend it as the main poem about Russia. I think if you read this, you will not regret it.:)
Just checked: All stories and books are from Michael Boelgakov. But I'll get to Venedikt Erofeev somehow. Is available on Good Reads and Amazon and the likes. Will also check if my local bookstores have it. Thanks for the recommendation!