Weren't you making fun of me five minutes ago for knowing about this stuff? [He mumbles something inaudible apart from the word 'tentacle'.] But yeah, that's right. The Shining Trapezohedron was an... artifact that could summon Nyarlathotep.

We found it. ...Here.

[A short pause.]

Not exactly working the same way as in the stories. Apparently, it can be used for... teleporting people between worlds.

Not that it means Nyarlathotep didn't have any connection with it, since the first thing it did was teleport half of us to the world he was hiding in.