The Islet Mystery 50

Ryan docked his yacht a few miles away from Isla Uno, an island that housed one of the MS Sciences Laboratory for years. It was also home to the families of hundreds of planters of Chara blooms, laboratory workers, and the patrollers who guard the safety of Chara plantations. Adjacent to the laboratory was a hidden cave, concealed by restructuring the entrance into an administrator's building. No one would ever suspect that behind the door of one of the offices, was an entrance to a vast cave where the workers packed the extracts of Chara blooms according to the amount specified for certain flavors of Myrtle Shade creamers. The cave also had tunnels leading to the laboratory and their different hidden exits.