"The Secret of the Caves" by Franklin W. Dixon is a mystery novel written in the early 20th century. This adventure follows the Hardy Boys, Frank and Joe, as they embark on a summer trip filled with exploration and intrigue, while facing various challenges and uncovering secrets connected to a missing professor and suspicious occurrences in the caves along the coastline. At the start of the story, Frank and Joe Hardy, known
for their sleuthing skills, are enjoying a day on Barmet Bay when they witness a dramatic rescue of a woman who jumped overboard from a yacht during an explosion. This unexpected event leads them to assist Miss Evangeline Todd, who urgently needs to see their father, the renowned detective Fenton Hardy, to discuss her missing brother, Professor Todham Todd. The opening chapters set the stage for the boys' subsequent adventure as they prepare to investigate the mysterious occurrences in the caves, navigating personal challenges, weather-related obstacles, and a budding mystery that promises excitement along the way. (This is an automatically generated summary.)