"Hunting for Hidden Gold" by Franklin W. Dixon is the fifth book in the Hardy Boys series. This classic adventure story follows brothers Frank and Joe Hardy, young amateur detectives, as they investigate mysterious events surrounding a treasure hunt in a dangerous and thrilling quest for hidden gold.

In this installment, the Hardy boys are called into action when they learn about a treasure hidden in the area, which was buried many years ago by a notorious outlaw. The brothers set out to find the treasure, but they quickly find themselves embroiled in a series of dangerous situations. Their search is complicated by a group of criminals who are also trying to uncover the treasure, leading to intense encounters and tests of skill.

As they follow a series of clues, Frank and Joe work together, using their wit and determination to outsmart the criminals and navigate through various obstacles. Their adventures lead them through perilous situations, where they not only face physical dangers but also have to solve a number of puzzles and clues that bring them closer to uncovering the treasure. Along the way, the Hardy boys use their keen investigative skills and teamwork to stay one step ahead of those who are also hunting for the gold.