Hugo ran over as did the others but Serena said "I'll go and track the other way. Be safe guys" she took off running as her Hound of the Guardian appeared and went with her. She paused as she reached the edge of the shadow realm and said "I have to see the angles...all the pieces..." but then she saw a young boy standing before her. He looked like Yami but younger, wearing a simple white robe. She moved forward and he said "You must remember, Guardian, before it's too late" Serena blinked and said "what do you mean?" The boy moved towards her and held out his hand. 

"You must remember why He has returned...and why you must face him..." Serena paused. She knew she should call the others but her heart was telling her that she had to do this on her own. She took a deep breath and muttered "Yami...if you need me...call me and I will be there" she then reached out and touched his hand and a wave of pain hit her whole body. Pain like she had never felt before. She cried out and fell to her knees, her whole body shaking as images blasted her mind like a movie on fast forward. She tried to keep from crying out but the rush of all her senses were too much. She was sure someone would hear her but she kept going, knowing this is what Pegasus had meant. Yami couldn't remember the past involving the guardian, so she had to be the one to open the gates.