Bhairavi is a fierce and terrifying aspect of the Devi virtually indistinguishable from Kali except for her particular identification as the consort of the Bhairava.
"Her lovely form is the incomparable Kali- black, blacker than the King of Death. Whoever gazes upon this radiant blackness falls eternally in love and feels no attraction to any other, discovering everywhere only her."
-Ramprasad Sen