Thread:Juraj103/@comment-31463564-20180129174913/@comment-24448826-20180403061004

Well. Originally it was only one of the fanfictions that won a contest held in Sapkowski's honour. Later these short stories were collected and published as Szpony i kły (Claws and Fangs). Sapkowski wrote a few words on the last page of this book. So they're recognized as what one might call official non-canon.