Solo puzzle completion

Today, after burning the last year's palms at church for use on Ash Wednesday, my granddaughter Bridget came over and completed a 500 piece jigsaw puzzle in four hours, while eating lunch, many, many Girl Scout thin mints, and a coke. I recently found this puzzle stashed on a high shelf, a puzzle her father and aunt did as kids. She did it solo, although at the end, Dover tried to pretend that he was the one who put in the last piece.