Hardy Boys 57: the Firebird Rocket

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 couragewitand clever detective workthe young detectives begin to close in on the enemyonly to discover that the tables have been turned. Captured by their cunning adversariesthe Hardys face certain death! Will they escape? Will the Firebird Rocket ever be launched?