Heroist
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Guys, let's think like a clue creator. He sees "Sesam" in the profile - parallel worlds - and remembers the journey between worlds - wormholes.
Or, he sees a star and finds this article? I wouldn't have thought it was a real picture, and it's quite difficult to find an article about wormholes and traveling between stars, but almost everyone knows about traveling between worlds through wormholes. Well, I don't know. I don't like Yashur for accusing everyone, and Sesam for his strange Mafia behavior.
Also, there's Oot - by the way, in Wikipedia - which can be considered the "official and only" reference for creating clues in Mafia - it says that these wormholes often transport people in time, not between worlds. To be fair, changes in space also indirectly relate to changes in time.
Whatever