Both boys and girls can't get enough of Nancy, Frank and Joe. In their newest investigation, the dynamic trio goes to a San Francisco college campus where they are lured into a web of danger and deception. The Hardy's infiltrate Ethics Now, an animal rights group threatening to disrupt lab research. Meanwhile, Nancy goes to the aid of a young violinist.
- ISBN10 0613103122
- ISBN13 9780613103121
- Publish Date 1 August 1995
- Publish Status Out of Print
- Out of Print 6 April 2021
- Imprint Turtleback Books
- Edition Turtleback School & Library ed.
- Format Hardcover (Library Binding)
- Language English