She wouldn't be afraid. None of the others were afraid and neither would she be. They'd trusted her, trusted her to reach the TARDIS.
As soon as Jess exited the narrow tunnel the first problem arrived; she couldn't see the TARDIS anywhere, and she had no idea in what direction they'd walked underground.
After a brief moment of looking around, trying to see if she could pinpoint anything which might help her find the right direction, she realized that all she could do was walk in a direction, and just pray it was the right.
She hadn't been walking for long before one of the carnivores suddenly descended upon her. Sharp talons and beaks ready to rip her apart.
"LEAVE ME ALONE!" She screamed on top of her lungs. Her mother had always taught her that if she ever came across a wild animal she should just yell at it, which would scare it away. Unfortunately that tactic didn't seem to work here, if anything it just made the beast even more bloodthirsty. Screaming she started to run, not longer caring if she was running towards or away from the TARDIS.
Her feet hit something on the ground and she toppled over. Unable to move she felt how one of the sharp talons slashed over her back, ripping both her dress and her skin up in the process.
The smell of blood must have spread like wildfire, for in the next moment the sky was dark with the dark beasts. She was going to die. There was no doubt. She would die, leaving her friends forever trapped in the dark cave, wondering where she was.
The beasts descended upon her. All of them eager to get a taste of the stupid creature which had entered their domain.
Then, just as she thought all hope was lost, she remembered the device the Doctor had given her. Quickly she reached into her pocket, pulled it out and pushed the button the Doctor had showed her.
An ear-splitting noise filled the air making the beasts scream in rage and fly away from her. Wasting no time she scurried back to her feet and started running. From time to time blindly point the device towards the carnivores and push the button; scaring them off.
Why did she feel so strange? Like everything was a blur around her. She could only remember one time she'd felt like that; when the Sheriff had poisoned the entire Pit Street, making it look like it was the pestilence.
How long had she been running anyway? The beasts had stopped there pursuit a while ago, at first she'd thought she'd managed to scare them away. Now the horrible truth dawned upon her: the moment the first one slashed her back she was doomed. There was no doubt the talons carried some sort of poison. All the beasts had to do was waiting for the poison to take effect. Then their dinner would be served.
Stumbling on she was determined not to give up without a fight.
Finally after, she didn't how long; something blue amongst all the grey and black and brown appeared in the horizon. Getting renewed strength she started to drag herself the final distance.
Why didn't the TARDIS come any closer? Was she moving at all? No, she couldn't give up now. Not so close to her goal.
Calling upon her last bits of strength she finally reached the TARDIS. As if it knew she was a friend the doors swung open and she walked inside. Pointed the device at the control in the middle of the room. Pushed the button. And collapsed in the floor.