If you are not looking for adventure, then they can easily find you. You go somewhere about your business, and suddenly you find yourself in another world. And different worlds meet. There are ordinary ones, where everything is decided exclusively by bare physics and technology, there are magical ones, where some intelligent ones can influence the surrounding reality by force of will. There are a lot of interesting things here for the non-random visitor from our world. Elven forests, Dwarven mountains, radioactive zones of nuclear accidents, from where stalkers carry unknown artifacts and other swag. What, the latter is clearly not from that opera and something like this should not happen in the magical world? There's nothing to be done, that world turned out to be very strange. There are no elves in it, no one has seen gnomes for a long time, but sometimes seekers wandering into the Mortal Lands come across them. And if you ask around the local arms dealer, you can get your hands on a worn-out Kalash very inexpensively. And all sorts of aliens who passionately dream of returning home are to blame for all this disgrace.