When Maisie calls for rain, and the thunderstorm begins, the natives bow down in terror, thinking she brought it on. But they have lived in that climate all their lives, and they would not be surprised by a thunderstorm at that particular time.
When Dr. Shane is trying to hold off the natives at the end, Maisie comes out and does some magic tricks - a color-changing scarf, and cards appearing from nowhere. Dr. Shane tells her to do more, and she says that's all she has. Yet earlier, she was doing a trick with a disappearing ball. And later she comes out doing a water trick.