I'm sorry if it was mentioned earlier, I didn't read all the pages, but was that a "good" monster? Is this something that's going to breed and eat everyone? I know The Doctor thought he was helping out, but that monster didn't seem too friendly when he was trapped there. Why does he think it's going to just be happy now that it's got it's mate. It'll start with eating the major and the rest. They'll land in a future were the Earth is crawling with them.