Hey folks!

Long time no see, ey?

So I write as a hobby and as a Lore Master for my DnD campaigns!
I was thinking about getting some feedback on a book that I'm writing!
Basically, the story takes place in 2002, in Poland. Poland hasn't left communism, which is still strong politically and militarily. Our main character, Anthony, who is looking after his missing friend who started to look for a city that no longer exists, goes to that city after following said missing friend. And why does the city no longer exist? It is stuck in 1989 after a Russian experiment that involves time travel gone wrong. He finds the city, gets sacked, and wakes up in a hospital with a strange implant in his neck.
Our second protagonist is an Old agent who is responsible for taking care of the city. He is an older man who has expandable morals to say the least.
Well? What are you thinking so far? I take any form of criticism!