The Mystery Of The Spiral Bridge, The Hardy Boys Mystery Stories #45 in the series. Author: Franklin W. Dixon. 177 printed pages pages. Hardcover book. Publisher: Grosset & Dunlap, copyright 1966, printed in 1973 in the U.S.A.

Synopsis:  In The Mystery of the Spiral Bridge, Frank and Joe Hardy become involved in a puzzling case when a series of strange incidents draws their attention to a mysterious spiral-shaped bridge and the surrounding area. What initially appears to be an isolated problem soon develops into a more complicated mystery involving suspicious characters, hidden motives, and clues that seem deliberately designed to mislead the young detectives. As the brothers investigate, they encounter danger and must use their usual combination of observation, deduction, and persistence to piece together the truth.

The Hardy boys follow a trail of clues that takes them through a series of increasingly dangerous situations, while trying to determine who is behind the mysterious activity and why the spiral bridge is important. Their investigation ultimately reveals a carefully concealed scheme, and Frank and Joe once again have to rely on their courage and detective skills to expose the culprits and bring the mystery to a close.

Condition: The book is in very good condition.  The covers have some light wear along the edges, and the front cover has a small price sticker residue mark on the top left corner from the removal of a price tag .  The inside pages are in very good condition with no writing, and the binding and spine are also in very good condition (see photos).