This antique Hardy Boys book, #50 in the series, is a must-have for any mystery or thriller fan. Written by Franklin W. Dixon and published by Grosset & Dunlap in 1971, this hardcover edition is a rare find for collectors. The book features the iconic Hardy Boys characters and is sure to captivate readers with its exciting plot and gripping suspense. Don't miss your chance to own a piece of literary history with this Danger on Vampire Trail edition.