Abby needs to stop acting like she can force her fear of heights away by sheer will, as that has literally never worked for her. As much as she might take on a climb without blinking, once she's up there, that phobia develops a mind of it's own. It's a parasite, taking control over her body.

A voice reminds her that she's not alone, and she is, in fact, holding up a whole line of people below her. Abby's too scared to look back and see who spoke to her. That's exactly when she would fall, isn't it? Turning her head to look, her foot slipping off the step... her mind supplies a convincing and vivid image. Her fingertips turn white against the cliff, as if they sought to dig into the stone and make grips.

She's not making the kind of impression she would hope to make. How intimidating and strong can she be, if a little stairway along a cliff leaves her breathless and trembling? It's so stupid.

"I'm — I'm fine," she says, that last part through gritted teeth. She takes another step gingerly and gives a little breathless laugh. "It's a little too high, right?"