Cybermen!
The rusted soldier marched fowafoward from the doors. oil leaked from a fracture in its metal exoskeleton. It walked with heavy, jagged movements. It's face was severely damaged, bare wires sparked from a large gap in its metal neck. It's black expression showed no emotion, it just stared forward as it marched, unaware that it eas being watched.
The Doctor's gaze followed the metal man's movements. It had turned away from the entrance of its ruined craft and moved towards the edge of the clearing, following a trail of trampled plants. Beside the trail lay a rugged, make-shift pipe, on the cold woodland ground. Leaks showed a liquid oozing out, unrecognisable in the dim light of the forest. Where was it coming from? The cybermen had moved out of site. The Doctor waited.
Within minutes it had returned. It appeared as though nothing had changed. Something was wrong. It returned to the entrance and disappeared inside the metal hull of the ship. Curious, the Doctor moved towards the pipe. He remained in the shadows of the trees, to avoid detection if the cyberman was to return. As he edged closer, the ground around him became almost bog like. He glanced down to see his cream converse caked in a think layer of sludgy mud. Despite this annoying problem, he continued forwards. He reached the pipe to discover it transporting water from somewhere deep in the forest. This confused him imensly. He followed it back to its source.
The Doctor pondered over why these cybernetic creatures would need such large quantities of water. They had no need of food or water as they didn't eat or drink. Were they using it as fuel? But what for? How were the missing children involved? Non of it made any sense. He had battled the cybermen navy times before, but he didn't understand what they could be planning. He needed to act fast. Even damaged he knew better than to underestimate their capabilities. It would only take one cyberman to cause unspeakable damage, not just to history...