The next place has people; Sadde's learnt to recognise that much. It has in fact quite a lot of people. And it has no magic, which is interesting, because of the last ten worlds, eight did, if only weird edge-cases or hard-to-find magic.
He suppresses his aura, and the blue, green, and white light that surrounds him reduces and disappears to something imperceptible to anyone with worse senses than his. He remembers where it was telling him to go, so he inserts the key into a nondescript spot of air and turns it, causing the faintly glowing outline of a door to appear. He opens it and steps through.