Ask the Mummy about her submissive nature.

"Why are you so submissive? I'm a human woman, shouldn't you be trying to make me your footslave?" You ask, tilting your head.

"I am a Mummy. I exist to serve those with stinky feet, and yours are stinky enough to make me serve. In fact, Mummies and other subservient undead typically live off of the foot fumes of their mistresses." She replied, drinking some sweat from your shoe before continuing. "Anyway, you could probably become a Wight or Wraith easily enough. Hours wrapped in my bandages while drinking my sweat can turn you into one of those high ranking Undead Monsters."

You blink, considering the offer. "Is this some trick? I have no desire to become some stink obsessed footslave."

The Mummy shakes her head. "No trick. I need a stinky mistress if I want to continue living, and making your already stinky feet stinkier will only help me."