Radha Dastoor had within her a powerful mutant fetus that had stalled development and stayed within her as a sentient being. It had various abilities including the ability to act through its mother.

Haven

Radha Dastoor had within her a powerful mutant fetus that had stalled development and stayed within her as a sentient being. It had various abilities including the ability to act through its mother.

All data from the awesome folks at Marvel.