Editor's note: An earlier version of this story referred to a $7 million renovation project at the Bakken Museum. Only phase one of that project has been completed.
In the backroom of an old mansion near Bde Maka Ska, a purple light hovered over a white sheet that appeared to be floating. A shaky voice narrated from Mary Shelley's book "Frankenstein," the story that inspired Medtronic co-founder Earl Bakken to become an inventor.
Suddenly a shadowy figure popped out of a little door in the corner of the room, startling siblings Anna and Katie Woodling and their mom, Peggy.
They'd never been to the innovation-focused Minneapolis museum before. Its classic "Frankenstein" exhibit was as new to them as the freshly installed "Spark" show, which focuses on inventions by a diverse group of people.
"I didn't know how much you could interact with everything," said Anna. "I thought it was just going to be walking through, reading about something."
"She's excited to bring her baby," said Peggy.
Anna nodded, saying the stimulation would be perfect for her 1-year-old.
The Bakken Museum reopens Friday after finishing phase one of a $7 million makeover that includes a new entrance and renovations to its exhibit spaces, classrooms, lobby and store.