The House on the Cliff by Franklin W. Dixon (The Hardy Boys #2)

The House on the Cliff by Franklin W. Dixon

The Hardy Boys #2, 180 pages

⭐⭐⭐/5

Synopsis (from Goodreads)

Frank and Joe Hardy are investigating a mysterious old house high on the cliffs above Barmet Bay when they are frightened off by a mysterious scream. The boys return to the apparently haunted house and make a connection between the place and a smuggling case their father is working on. When their father goes missing, they start-out investigating the secret caves beneath the house and soon confront the gang of smugglers.

The Tower Treasure by Franklin W. Dixon (The Hardy Boys #1)

The Tower Treasure by Franklin W. Dixon

The Hardy Boys #1, 214 pages

⭐⭐⭐.5/5

Synopsis (from Goodreads)
It all starts with the boys, Frank and Joe, on their motorcycles delivering important papers to a lawyer in Willowville for their father, Fenton Hardy. He's the well-known private investigator who lives with his family in Bayport. A reckless driver almost forces them over the embankment. It is not long before they find that their friend Chet's yellow jalopy has been stolen, possibly by the same red-haired driver! Stolen loot may be the issue. Later a dying criminal confesses that the loot has been stashed "in the tower" and the Hardy Boys make an astonishing discovery.