Behind the Green Door

Behind the Green Door is Mildred A. Wirt's fourth novel in her wholesome girl detective series featuring the curious and daring Penny Parker.Penny visits a ski resort and stumbles upon several mysteries. Unknown enemies are trying to force the resort to close and during her investigations Penny discovers a mysterious green door in the resort that leads to a room that can only be entered by invitation. Meanwhile a new acquaintance offers to sell Penny a fur coat inexpensively. Penny investigates solving all of the mysteries scoops a rival reporter and is rewarded with a new car.