Ears flattening back a little at his voice, eyes wavering away as she slowly turned her head to the window. Staring with yearning and reluctance to let go of this only source of visuals of the outside world. Momentarily she stood without a single stir, eyes absorbing the light of the falling moon. There was something... something off... Maybe-- no, that certainly wasn't it. Perhaps it was instinctual fear, yeah it was more likely that, or well whatever it was made her eyes ripple with a fleeting wall of tears that never broke. Disappearing before they could ever could ever learn to fall in their wake.
Swallowing hard, she exhaled heavily through her snort and began to walk. Folding her hands behind her back as she trailed silently behind the other, face downcast and shadowed by the curtain of hair it caused. Shielding her from the blinding light but not at all defending her from the gnawing quietness of the halls.
"Hmm?" Serenity managed to return from her spell of absent-mindedness before running into the scientist. Standing there in brief idleness, only now looking up with an upturned face to him. There was something... something still off about how she looked at him. Despite the misshapen results of science, in that moment she looked more human then she could ever be.
She opened her mouth slightly, obviously to say something but nothing came. An uncertain breathe stuttered past her open lips, defeated on even trying to speak as she looked into the darkness opened before her. Clamming up, she gave a simple nod of her head upon what he informed on the changes of her diet and obediently walked ahead of him. Vanishing almost completely in the dark of the room, there was no doubt in her timid stride as if it was second nature, knowing and returning to the correct cage. Where should she stood silently; not a last word, not a single sound. Just waiting.
However, nothing could ever go so swimmingly. A short, sharp whinny of alarm slipped past her in reaction to the suddenness of a neighboring experiment seemingly throwing themselves against their cage. Hissing and growing and lashing out their hands at the bodies of heat they were seeing, but more so directed towards the scientist. Still, that didn't keep the hybrid man from hissing and spitting out pained profanities, slashing curled fingers towards the horse-girl and the one that stood by the open door.
Serenity's ears flattened back, arms huddled close to her chest as she fearfully took a step back from her cage, shaking even out of instinct of the other. It was the strangest thing... She could sense what the other experiment was crossed with without even seeing them, and it was something that made her equine blood wave red flags. That and she had never had a liking for snakes.