Anna is very similar to Laura, in size, and shape, but she is thinner, better at jumping, and blue. She originally wanted to go to the fountain, because it seemed cool and she could do it alone, but she wasn't alone and "they" had seen her, so she bailed. She mistakes Benjamin for a cloud when she first sees him, and after that, she is unimpressed by the jet-pack.
At first, Anna tries to warn Benjamin of what lies ahead and to make him go back, to which he ignored. Anna gets visibly annoyed by Benjamin pretty soon, and even more when Sarah shows up and only encourages him. After a while, she gives up and ditches the two. She locks herself away and says she's done with adventures.