Ka cika wannan magana: Ba kamar sanannen aikin Howard ba, "The Shadow of the Vulture" labari ne na tarihi, wanda aka kafa a ƙarni na 16. Yana amfani da aikin Ottoman sultan Suleiman the Magnificent (wanda aka fi sani da Sultan Suleiman I), bayan yakin Mohács (1526) da kuma daga baya
Siege na Vienna na 1529 a matsayin wani backdrop ga m haruffa da kuma abubuwan da suka faru.