kali's sister-turned-wife, "durukti" (calumny), gave him two offspring: a son named "bhayanak" (fear) and a daughter named "mrityu" (death). his son and daughter gave him two grandchildren: a boy named "naraka" (hell) and a girl named "yatana" (torture). again, there are some discrepancies here. the vishnu purana says mrityu and bhayanak are his brother and sister. mrityu is even represented as male instead of female.