"…I mean, I thought she was going mad and of course I was completely confused! She thought I was the one who pushed her off the cliff!" The Doctor finished as he and Tristan finally got back to the TARDIS and unlocked the door.
"I'm pretty sure this thing will never cease to amaze me." Tristan smiled and looked around the TARDIS for the second time, her eyes finally landing on the Doctor.
"And if you stay long enough," he sat down and rested his long legs on the console, "You might just get some frequent flyer's privileges."
They both fell on the grates when the ship suddenly started shaking violently. Tristan crawled over to the side and held on to a railing while the Doctor jumped up with one swift motion and started twisting knobs and pressing buttons. After what felt like only a minute, everything stopped, and they both stared at each other, hands gripping onto whatever they could, only their wide eyes moving. The Doctor finally loosened his grip, slowly walked over to Tristan, and helped her up.
She closed her eyes and exhaled an extremely long breath, "You could've warned me about that first."
"I—I didn't do it." He said low and slowly, just as shocked as she was. But in a fraction of a second, he moved quickly like a child on a sugar high and swiveled the monitor to face him, "We are…in a cave."
He looked over at Tristan, who didn't give him a response, "Stay here, I'm going to go outside and check it out. Don't wander off." He turned around, and headed for the exit.
"No way!" Tristan finally said, making the Doctor jump, "Wait, I'm coming with you."
"Absolutely no chance," He said firmly, "There is no way I'm letting you come, we don't know what's out there."
"Exactly! We don't know what's out there! What if it comes in here and you're gone and I get killed?"
He sighed and made his way towards the exit again, "No, and anyway, the door is locked, and nothing, I mean nothing, can come in. I will see you in a bit."
He stepped out of the TARDIS smiling and glad that she finally didn't object the idea. Once he turned around to grab the door handle, he heard a click and came face to face with a pair of deep blue eyes.
"Tristan!" He growled immediately.
"Door's locked, I can't get back inside." She smiled and stepped forward before her companion could say another word.
"What's that?" She asked, staring at the blue light that was showing them the path out.
"Sonic screwdriver." He answered simply.
"What does it do?"
"Everything now stop it! We don't want to disturb anything, if there's anything in here."
She sighed and almost lost her balance on the vibrating ground. There was absolutely nothing special about this cave and she was pretty sure she would rather be traveling through time and space than walking through a cave. Now, she had never been in a cave before, but she was pretty certain all caves had gray stone walls covered with brown dirt and had brown dirt all over the ground.
"…Maybe some bats." She exhaled, letting her thoughts escape her lips.
"Some what?"
"Nothing," She whispered quickly, "Hey, what's that?" She pointed to the side where the wall was covered with engravings.
The Doctor shone the sonic on the wall, "A drawing of a person? An incredibly large person, but look, there's another drawing of a person," he moved the sonic to the right, "it looks like a woman."
As they got closer and closer to the entrance, there were several markings on the wall that resembled scratch marks and there were more drawings that looked identical to the one they saw before.
"And we're out." She squinted as the sun hit her eyes.
Everything was gray and dusty but there was no breeze to blow it, but the dirt was jumping from the constant vibrations on the ground. The bright sky was an intense orange and red, but there were no clouds and no sign of rain for ages that made the bountiful forests packed with large firs with bland brown bark and green leaves dusted in gray in front of them seem completely impossible. The duo felt a rumble creep up the front of their bodies out between the trees followed by a loud, deep cry ringing in the air.
"That's our cue!" He grinned and they both ran between the large gaps between the trees.
They walked down a very long and crooked path where the grounds vibrations got heavier and heavier and stopped when they reached a line of black iron gates. Standing behind a tree, they both peered through the bars. It was all the same scenery, but to the right, very close to the gate, there was a huge castle-like building made from wood and stones. Right behind the building, four 20-foot creatures with ropes tied to their two arms and two legs were hauling boards holding boulder-sized masses of a coal-like solid substance.
"Are those…giants?" She asked wide-eyed.
He nodded with fire in his eyes, "Those are giants, and someone is using them as slaves!"
"Well we've got to do something!" She urged and started to move towards the gate.
"No!" He quickly grabbed the back of her shirt and pulled her against him, "We can't get through those gates without a good plan…or a start of a good plan. I usually make them up as I go along."
"Well can't we just get through and make one up as we go along then?"
"No!" He whispered, "Let's go back to the caves. My psychic paper is in my coat which is in the TARDIS which is in the caves and I need it for the start of my most-likely brilliant plan."