The Firebird Rocket (Hardy Boys Series #57)

The launching of the Firebird Rocket is endangered when a famous rocket scientist disappears without a trace on his way to the Woomera Monitoring Station in Australia. Assigned to the case, Fenton Hardy tells his sons he needs their help. And Frank and Joe must turn down a request that they find the missing son of a prominent senator. With courage, wit, and clever detective work, the young detectives begin to close in on the enemy, only to discover that the tables have been turned. Captured...