Hook L'Implacabile #139
| Series | Dylan Dog |
| Number | #139 |
| Publisher | Sergio Bonelli Editore |
| Date | 1998-04 |
| Type | Comic Book, Softcover |
| Language | Italian |
| Art Director | Luigi Corteggi, Michele Pepe |
| Cover Inker | Angelo Stano |
| Cover Penciler | Angelo Stano |
| Editor In Chief | Maria Baitelli |
| Inker | Maurizio Di Vincenzo |
| Letterer | Diana Rocchi |
| Managing Director | Decio Canzio |
| Penciler | Maurizio Di Vincenzo |
| Writer | Pasquale Ruju |
| Copyright Holder | Sergio Bonelli Editore |
| Distributed By | A&G Marco |
| Printed By | New Interlitho Italia S.p.A. |
| Genre | Horror |
| Published in | Italy |
| Pages | 100 |
| EAN | 9 771121 580009 80139 |
| Characters | Dylan Dog, Groucho, Inspector Bloch, Death |
| Story Location | Hungary / Russia |
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