"The Hardy Boys" The Secret of The Old Mill (volume 3), The Missing Chums (volume 4), Hunting For Hidden Gold (volume 5)

Name: "The Hardy Boys" The Secret of The Old Mill (volume 3), The Missing Chums (volume 4), Hunting For Hidden Gold (volume 5)
Author: /author/Franklin_W._Dixon_(The_Tower_Treasure_%5B%5BHardy_Boys_Mystery_Stories%5D%5D)