"He's making quite a racket isn't he?" The Doctor's voice spoke up softly from the left of Jake. He had heard and felt the Ikran's panic from a way off but hadn't tried to locate him. The timelord knew better than that.
He had stayed far away for the time being, figuring Jake would be back soon and he had inspected he membrane and the creatures swimming around outside. It was both beautiful and interesting, but also a worry. What if it broke? Developed leaks? Just disappeared without warning?
The Doctor had been pulled from his musings by the sound and feel of large feet running fast, a flash of blue off to the side confirmed who it was and he slowly followed. He had kept a distance even as he had spoken aloud. Not wanting to be close if he startled him.