While at a comic book convention, the Hardy brothers and Frank's new girlfriend Jones meet up with Jones's online friend Harper, but when she disappears overnight, the brothers start looking. into her life and uncovering her secrets.
| ISBN: | 9781534414884 |
| Publication date: | 19th February 2019 |
| Author: | Franklin W Dixon |
| Publisher: | Aladdin |
| Format: | Paperback |
| Pagination: | 148 pages |
| Series: | Hardy Boys Adventures |
| Genres: |
Mystery / Mythology |