"I might risk it, but is there any way to reverse the shrinking once we're done with it, or will we be stuck tiny forever?" the Dentist asked. he'd been very confused, so he was lost in thought. These creatures... couldn't have gotten here on their own, they were way too primitive. They either had some sort of sense or something that allows them to get to other planets without technology, or they... The Dentist snapped his fingers. "Idea!" he ran to the main console of the TARDIS and began flipping some levers and typing some things in. He pulled up the page of information for the Ravecs. "Look here," he pointed to a line of information. "It says here, 'only primitive advances in any fields of discovery have been known to be with the Ravecs', meaning, that they couldn't have gotten here on their own! They had to have been brought here by something..." he said. "Any ideas of what had the technology to bring these creatures here and why, because that information might bring us right to the solution."