A Faint Cold Fear.(Book Review)(Brief Article)

KARIN SLAUGHTER, Morrow, $24.95 (3520) ISBN 0-688-17458-2

In the coldly captivating tradition of Cornwell and Reichs, Slaughter (Blind sighted; Kisscut) returns to Grant County, Ga., to offer a third installment in the adventures of smalltown pediatrician and part-time medical examiner Sara Linton. Called in to investigate the apparent suicide of a male Grant Tech student, Sara brings along her pregnant sister, Tessa, who wanders away from the scene and is brutally attacked. The distraught Sara must work side by side with her ex-husband, Det. Jeffrey Tolliver, whom she loves despite his past infidelity, but it's Lena Adams, formerly a cop and now a campus security …