Penny Parker, a reporter, goes to a ski resort and stumbles onto a pile of mysteries. A mysterious group is trying to force the resort to close, and as she investigates she discovers the strange green door. What's behind the door? Only a special invite gets you beyond the secretive portal, and it seems that the people in power don't like reporters.
Decent story for girls al la Nancy Drew. Totally ruined by the absolute worst narrator I've ever had the misfortune to listen through. Would like more in this series, but only if a change in narrator is made.