The Sherlock Society by: James Ponti

In this debut novel of the Sherlock Society series, siblings Alex and Zoe Sherlock, inspired by their last name, embark on a summer adventure to establish their own detective agency. They are joined by their friends Lina, a bookworm, and Yadi, an aspiring cinematographer. Their first case involves investigating the long-lost treasure of infamous gangster Al Capone, hidden near their hometown of Miami. Their quest leads them to a remote island in the Everglades, uncovering alarming evidence hinting at corporate corruption. With the help of their retired journalist grandfather and his aquamarine Cadillac convertible, the team uses their intelligence and some clever gadgets to unravel the mystery