The Memory of Annie

Okay this a piece from the same book of the one I posted earlier, but it's way later in the book. In fact, I haven't even written this far, but I got this idea and I wanted to write it somewhere.
Basically, the thing Charles found that looks like a pocket watch is called the Memory Watch. It can be used to go into memories and even alter them, if the holder of the Watch wanted to. Gemini was the only one who was able to use it, but when she was captured by her enemies, who want the Memory Watch for their own for the power to alter the enemies she gave some of the power to Charles so he and Paige could find her.
Charles and Paige are in one of Paige's memories, right in the middle of their expedition to find Gem and they come upon a hospital, a hospital Paige recognizes well.
Just a little note to add: the people she sees are only memories, so they don't see her. The other Paige is her from her past.
I feel like I'm not getting the mood through well enough. Please give me some suggestions!

"Charles, I know Gem told us not to split up, but. . . I really just want to go in by myself," Paige said slowly. She knew this hospital. And a part of her knew what she would find in there. It wasn't a memory she wished to relive.
"Okay, I'll search the other buildings," Charles said, catching the serious tone in her voice. He headed off down the street.
Paige approached the entrance of the hospital slowly. She dreaded what she might see inside, but somehow she knew she had to see it once more.
When she entered, she should have come into the waiting room. Instead she found herself just outside one of the rooms, face to face with a replica of herself, only the girl was about two or three years younger than the present Paige was.
The younger Paige didn't see her, just like all the other memories. She walked past Paige, towards one of the doctors. "Are you positive about this?" she asked. Her voice shook.
The doctor looked sadly at the other Paige. "I'm sorry. There's nothing we can do now. We've tried everything - nothing has helped. You can see her if you want. . . there won't be much time left for you to do so."
Paige nodded weakly. She turned and headed into one of the rooms. The Paige of the present followed silently, like a ghost. Numbness kept her only dimly aware of where her legs were taking her.
Paige from the past was greeted warmly by a small girl in a hospital bed. It had been the first time she'd seen her young friend without needles in her wrists and so many other things. It had also been the last time.
"Paige!" the girl cried happily.
Younger Paige mustered up a warm smile, hiding her feelings. "Hello, Annie." She sat down at the end of the bed.
Annie had been small in the first place. Now, after she'd fallen ill, she'd lost so much weight Paige wondered if there was anything left to lose. Her hair clung to her pale skin, soaked by sweat from a cruel fever. She looked so frail, but somehow her big blue eyes managed to remain bright.
"I've missed you," Annie told Paige.
"I've missed you, too," Younger Paige replied, but the real Paige knew what she was really thinking: I'm going to miss you.
"Paige? I don't want to draw or play games or anything today. I'm a little tired." Annie coughed violently then, and she didn't stop for a long time. Present Paige felt her own heart break to hear that, knowing by the look on Annie's face how much this sickness hurt her.
When Annie was finished, she fell back against her pillows. "Will you just sing to me today? I like you singing to me."
"Of course I will," the younger Paige said, and Paige could almost remember that lump she'd felt in her throat at that time.
Somehow, though, she managed to sing. It was a song she had made up with Annie a week or two after they'd met, and it was about Annie, as a beautiful princess, who was loved by all in her kingdom.
Annie smiled. Younger Paige looked away so she wouldn't see her cry. Her singing was strained as she tried to hold back the sobs that threatened to come, but Annie still had that huge smile on her face; she didn't care how it sounded, she just cared about the person who was singing it.
Paige felt tears of her own spring to her eyes. She swiped them away quickly, though she knew no one could see. It's not fair, it's not fair, she thought, no one like this deserved to die.
She couldn't stay there a moment longer. She fled from the room, out onto the sidewalk of the hospital. The tears couldn't be contained any longer, but she remained silent.
When she really thought about it, it didn't quite make sense, how much she grieved. Paige had been volunteered by her mother to help out at a children's hospital, just to come in and visit the kids. She was reluctant about this, but had gone anyway, and ended up really enjoying herself. She'd loved all the children she talked to, but Annie was always her favorite.
Paige hadn't gone to the hospital since Annie's death. It wouldn't be the same, to never be able to see the small girl's bright smile.
She turned left, the opposite direction Charles had gone in. He couldn't see her like this. She knew he would demand to know what happened, and she didn't want to talk about it. So, against Gem's wishes and her own intuition which was, for whatever reason, warning her not to, she wandered off.