Title: Shield of Fear
Description: Frank and Joe travel to Philadelphia with their father to assist the police commissioner with two difficult cases. When Fenton Hardy is kidnapped, Frank and Joe must go all out against a sinister underworld gangster to rescue their father.
Subjects: Detective and mystery stories, series:HardyBoys, collectionID:HBMS3, Children's fiction, Mystery and detective stories, Hardy boys (fictitious characters), fiction