Researching spells could often go wrong... and Dirza had the bad luck to be one such unfortunate wizard. She was looking up a very strange portal spell... but it never seemed to appear when she cast it. She put it out of her head as just so out of her reach, nothing happened. At least it didn't open up a portal to the Demonweb layer...
...but strange news spread on Faerun... she had the feeling that she was responsible when an announcement was heard around Faerun...
Greetings, pathetic life forms. Your planet is now my planet. Some of you will die, and the rest of you will WISH you were dead. But I require entertainment, so I will take some people off your planet to transfer them to my location. Do not be jealous of them, they probably won't fare too well here either.
The portal she'd summoned appeared before her and she was pulled in, not even fighting it.
...but boy, was she ever pissed.