Shadow, once again, gave her word to help Yugi whenever she can. And she promised that they will get his grandfather's soul. Yugi didn't deserve that, and he shouldn't have. But the next day, it was like a clue was found to solve their problem: tickets to Duelist Kingdom! Okay, [i]now[/i] Pegasus was playing with them. She didn't trust the man, but it was like he was giving them no other choice, but to accept. "Pegasus did mention that he would start another tournament. In this case, you're the guest of honor", the genie pointed out as she appeared by Yugi's side. Honestly, she knew he wouldn't care about the million dollar prize; all he wanted was his grandfather's soul. 

Along with Yugi, Shadow was curious too, once Joey snatched the invitation. What could be so important about earning this prize?