She also had the downside that even with the relatively easy routes to the material travel skills her ability to travel between shadows was limited to an area around where she had a body, or where she had specifically made unnatural shadows. Yellow-Glow had outright panicked when she said that it also worked for her Lava Viper body, and then went to personally get the pieces of that set of branches in a rather extreme rush. That made a lot more sense when he pointed out that it would in theory work with the 'human' bodies of other Entities too.
Apparently the biggest taboo was going to the human instance they knew about. Although Yellow-Glow had not appreciated the question about what happened with other human instances, or maybe did and just turned that into an interrogation about if she had seen anyone from one of those. She had not as far as she had asked, but admittedly nobody had told her much about the human instance yet.