THIS ANIMAL IS MISCHIEVOUS by David Benedictus, 209 pages, New American Library. $4.95.
A pleasantly arrogant young Briton and his pretty, skittish twin sister are unwittingly trapped in the warfare between a cell of Black Muslim-type activists and a clutch of Negro-baiting neoFascists. Eventually the twins bob up at an international Fascist jamboree atop Mount Parnassus, where the Negroes attack the Fascists in their meeting-tent, then rape and murder the sister. The hero escapes to go home to pamphleteer in the cause of tolerance, and to get himself happily married. "The answer to...