She was later found to have been killed and eaten by Kruger. She was the impetus for it to have a change of heart, and look into passing along information on what was happening to the disappearing kids to the police in exchange for asylum.
Her effects were found at the abandoned house on Grunge Road. Shelly was able to tell from her effects that the Mindy had been a Spark while alive.
Dakota was able to use her psychic powers on Mindy’s bag to get a glimpse at what happened to her, but it was too much and caused quite a bit of psychic trauma on her. She was able to tell that Mindy’s captor and killer was Laithe Delacroix.