USS K'HIg'Den's Lair (NCC-0021), nicknamed The Lair, was a Klingon B'rel Class Bird-of-Prey that was captured by Starfleet Academy cadets Higdon, Kijo and K'Cire during a rescue operation of the Great Epetai, the mother of the Crown Prince, Kijo, also known as the Empress of the Cha'ouw Empire. Higdon would used The Lair mostly for transport between Starbase Rockford and the Cha'ouw Homeworld, although he would also use it in special assignments.