The Hardy Boys Undercover Brothers Paperback Lot of 4 Books Mysteries Youth

The Hardy Boys Undercover Brothers The Original Youth Sleuths!! Mystery Books Lot of 4 Paperback Books Includes: #1 Extreme Danger #3 Boardwalk Bust #4 Thrill Ride #7 Operation: Survival Published by Aladdin Books Books are in good condition with surface scratches, and wear to the corners/edges. Binding is good. No missing pages. May have inscription/name in front or back covers Please view all photos for condition.