Tamar Deborah Challinor HarperCollins, $21.95, ISBN 1869504089 The Trespass Barbara Ewing Times Warner, $34.95, ISBN 0316860573 The Stove Rake Denise Keay Flamingo, $24.95, ISBN 1869504062 One of the most disconcerting aspects of the reading experience, encountered frequently at this more…