An intrepid psychoanalyst searches for clues and a killer following the mysterious death of a medium in fin-de-siecle Vienna. Tallis, a clinical psychologist who has written on Freud, evokes the Vienna of Freud, Klimt, and Mahler in wonderful detail. Published in Britain as Mortal Mischief, this is the first of a series of novels starring Dr. Liebermann.  (AST77, $14.00)