Katie is the center of Lee Cronin’s The Mummy : she was taken as a child, later found alive in a mummified, catatonic state, and it turns out she had been used as a vessel to contain a demon called Nasmaranian. In the ending, the demon is transferred out of Katie and into Charlie, which frees her, but leaves the family with a horrifying cost.

What happened to Katie

  • Katie disappears early in the story and is assumed abducted.
  • Years later, she is discovered inside a sarcophagus after a plane crash.
  • She returns physically alive, but not truly well: her body has been preserved in a way that hides a demonic possession.
  • The family learns that she was being used as a living prison for the entity.

Ending explained

Charlie sacrifices himself so the ritual can move the demon out of Katie and into his own body. That saves Katie, but the film ends on an unsettling note because the evil is not destroyed, only relocated.

In one line

Katie survives, but only after the monster inside her is passed to someone else.