'La daga oscura' now is realeased in English as 'The Dark Dagger'.  English is not my native language, so I apologize for any mistakes I may have made. Although I have received the generous help of some friends, translating an adventure is such a complex task that there are likely things that have escaped their correction. If you find any errors or anything you think could be improved, I apologize again and kindly ask you to let me know. Thank you in advance.