Green can be forced out of the Hollow if the Other advances, they will also take a tile penalty and go Lights Out. If 3 Shrieks are drawn (B), Yellow and Green will be ejected from the Hollow. Yellow will not take any penalties from this, but Green will suffer a tile penalty and go lights out. If Blue, who is on the Main Board, moves onto the Watched Key tile then Yellow and Green will be ejected from the Hollow (C).