Vintage The Hardy Boys BRITISH SERIES Book Lot No#’s 21,27,31,&41

PLEASE NOTE THAT THE BOOKS ARE IN EXCELLENT CONDITION FOR THEIR AGE, 

ALSO THAT THE BRITISH SERIES ARE NUMBER DIFFERENT FROM THE AMERICAN SERIES!!

Books: 21) WHAT HAPPENED AT MIDNIGHT

27) THE MARK ON THE DOOR 31) THE TOWER TREASURE 41) THE MYSTERIOUS CARAVAN

please see photos and if you have any question please ask. thank you for looking at my listing. Have a great day!