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Pocket Books.
A noted professor accidentally invents a deadly virus, which the Hardys are transporting via train to a safe lab. When the professor's son is killed en route, Frank and Joe realize that one of the passengers is a spy--and would sell the lethal strain to the highest bidder.
| Publisher | Pocket Books |
|---|---|
| Pages | 160 |
| Format | Paperback |
| Search language | english |
| ISBN_13 | 978-0-671-85165-1 primary |
| ISBN_10 | 0-671-85165-9 primary |
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