The Hardy Boys, brothers Frank and Joe Hardy, are fictional characters who appear in several mystery series for children and teens. The series revolves around teenagers who are amateur sleuths, solving cases that stumped their adult counterparts.
The Ghost at Skeleton Rock is Volume 37 in the original The Hardy Boys Mysteries, published by Grossett and Dunlap..
Frank, Joe, Chet and Tony travel to Puerto Rico to investigate the mystery behind a coded letter they received from the Hardy's father. They later go in a race against time to stop a criminal mastermind from using an atomic bomb to take over the government of the fictional country of Tropicale
BYOP