Wherever Michelle Rein went, Taz, her black Chihuahua, went, too.
Taz was trained to nudge her mistress and offer emotional support when bouts of disabling pain washed over her.
On Friday, at the Bryn Mawr train station, Rein reacted as one who considers a dog as family. Taz had become agitated and strayed onto the tracks, and Rein stepped off the platform.
Before she could cradle the dog and stand up, the train was on her, a witness said. Rein, 44, of Center City, a student of Islamic art and architecture, died instantly of massive injuries, police said.
Taz was thrown clear of the train and is recovering from a dislocated hip and fractured femur, said a spokesman for the Montgomery County SPCA, where the dog was taken. After treatment, Taz was adopted Sunday by a family member.