This vintage hardcover edition of "The Hardy Boys: The Mark On The Door" by Franklin W. Dixon is a must-have for any fan of action, adventure, and mystery detective stories. Published in 1967 by Grosset & Dunlap, this book is part of the popular "The Hardy Boys" series and features illustrations that bring the story to life. The original English language text is easy to follow and perfect for readers of all ages.

The book is in great shape and has been well-preserved, making it an excellent addition to any collection. With its vintage format and intriguing storyline, "The Hardy Boys: The Mark On The Door" is sure to captivate readers who love detective stories.