3 etsivää ja naurava varjo
| Book | The Mystery of the Laughing Shadow |
| Publisher | Gummerus |
| Translated by | Kati Appelqvist |
| Copyright Holder | Random House, Inc. |
| Printed by | K. J. Gummerus Osakeyhtiön kirjapaino |
| Foreword by | Alfred Hitchcock |
| Series | The Three Investigators |
| Cover Artist | Matti Louhi |
| Format | Hardback |
| Language | Finnish |
| Location | Finland |
| Printed | 1977 |
| Copyright | 1969 |
| First Printing in Country | 1976 |
| Pages / Font | 154 pages |
| ISBN | 951-20-1212-X |
| YKL (Finnish) | N8453 |
| Edition No. | 2 |
Added by Gumby74