The Quarry - James Nelson Robinson

10 years have passed since youngsters Bobby Massey and Linda West stumbled across an Australian Government secret cache of weapons. Now armed with new information, rogue government officials were ready to take any measures necessary to ensure their lucrative secret deal with a third world nation rebel group, remains secret.
Bobby is captured by ex-military soldiers working for the rogue elements and interrogated in an effort to get him to reveal all he knows. Witnessing Bobby's capture, Linda recruits a serving Royal Australian Navy commander and a senior sergeant in the NSW Police Force to assist her in rescuing Bobby from his captors. The rogue government officials get a nasty surprise once the two are reunited.