In common with many of his Russian literary predecessors and contemporaries, one of the most striking points about Mikhail Bulgakov is the extent of his achievement within such a relatively short time – in his case from the early 1920s until his premature death in 1940. Within this period, he wrote two major novels, together with several short stories and a number of plays. Of equal significance, however, is the range and variety of his creative imagination, embracing semi-autobiographical memoirs, historical drama, magic realism, fantasy, political satire, and stories which may loosely be categorized as ‘science fiction’. Included under this last heading is his short story Rokovye iaitsa (The Fatal Eggs).
Cockrell, Roger. "Rokovye iaitsa". The Literary Encyclopedia. First published 25 October 2011
[https://www.litencyc.com/php/sworks.php?rec=true&UID=33151, accessed 15 September 2019.]