Doom has a complete free run of the mansion and is therefore usually the only one with total knowledge of what is going on in any given area of the house. This keeps her one step ahead of Ruby and the others most of the time, because whenever something strange happens in the mansion, Doom will usually have all the facts already while everyone else is still trying to figure things out. Since Doom can't talk, her only hope of communicating with the others is through charades, with violin sounds accompanying each of her motions. Ruby is the only one who routinely understands what Doom is trying to say. The others struggle to decipher her body language.