Szepczący w ciemności
| Book | The Call of Cthulhu |
| Translated by | Ryszarda Grzybowska |
| Graphic Design | Maciej Sadowski |
| Typeset by | "PRINT" |
| Printed by | Białostockie Zakłady Graficzne |
| Publisher | CoLibri, Agencja RTW |
| Format | Trade Paperback |
| Language | Polish |
| Location | Warsaw, Poland |
| This Edition Published | 1992 |
| Pages / Font | 320 pages |
| ISBN | 83-85493-03-4 |
| ISBN | 83-85493-02-6 |
| Issue Number | I |
| Notes | Compiled from "The Dunwich Horror and Others" ed. by Arkham House, 1963 |
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