Fanny Zindel, a 65-year-old widow with a punchy backhand and a Mossad-agent boyfriend, while in York, England, to attend a memorial service for Jews massacred there way back in 1190, confronts murder at her granddaughter Susan's posh but impoverished boarding-school: Susan's nemesis, the sexually precocious and drug- slurping Mary Louise, becomes the victim of what appears to be a ritual Jewish slaughter. Then Miss Kentworth, the headmistress in love with Mary Louise's father, the Jew-hating vicar, is murdered. Susan, of course, becomes the main suspect--but not to worry: Pesky Fanny will hide evidence, disturb crime scenes, and lie a little to get at the real culprit, who will murder once more before an inheritance scheme is laid bare and an anti-Semitic zealot brought to task. Strained dialogue (``Such a lump you have, I could put it under a hen to hatch'') quickly palls, and Fanny and her travails become tiresome long before the implausible denouement. Second in a series that began with Red Sea, Dead Sea (not reviewed).