It’s my favorite series of his. I read the first couple of Laundryverse books, and while they’re fun, I’m not a fan of the lovecraftian horror thing. But Merchant Princes hooked me right from the start. Tons of politicking, and by the end it gets messy, like really messy. It’s basically The Godfather meets Game of Thrones meets Sliders. And then the followup series (Empire Games) is a Cold War spy thriller with portals. You can just start with Empire games, it’s written to be a separate series, but it does have massive spoilers for the original series.
If some random dude comes in and opens a new instance, and then it comes out that this dude willingly associates with white supremacists, is a known creep, and even had a hand in an actual real life genocide, everybody would defederate without a second thought.
But suddenly that dude is Facebook and has a shit ton of money and everybody is just wait and see.