I believe it's 48 North Terrace. Carolyn Keene was a pen name for Helen Stratemeyer Adams.
Here's a link from when the house was most recently for sale.
http://emailrpt.gsmls.com/publ...
Promote your business here - Businesses get highlighted throughout the site and you can add a deal.
Coffee mugs $1.50
More info
Anyone know the exact address on North Terrace? I'm asking for a big Nancy Drew fan.