Chapters 11-12

In chapter 11, Petra rides her pony to a place where she isn't allowed to go. There, she is attacked by beast and so she telepathically sends messages to David. David manages to shoot the beast and rescue Petra, but her pony did not make it. A man named Jerome Skinner questioned them out of suspicion. When he saw nothing wrong, he left. After reading up to chapter 11, I see Petra as a little trouble-maker. It seems that David has had to rescue her a few times. Also, by now, I thought that people would already have known about their telepathic ability. I predict that it will come soon.
In chapter 12, the inspector captured Sally and Katherine. When David and Petra find out about this (telepathically of course) they sneak out of their house. I think as the chapter go on, keeping their secret seems to get more and more difficult.