Title: Absolute Zero
Description: Irene Weinhardt's father, renowned physicist Kenneth Weinhardt, has been officially declared dead. But his body has never been found. When the Hardys agree to help Irene investigate her father's fate, they discover that his supersecret research into superconductors may have been worth millions, making him a select target for foul play!
Subjects: series:HardyBoys, collectionID:HBCFS, Children's fiction, Mystery and detective stories, Hardy boys (fictitious characters), fiction