Murder by Bicycle — Veronica Heley

The next title in the popular Ellie Quicke series When a nasty outbreak of food poisoning afflicts the congregation of Ellie's church following a Faith lunch, Ellie is horrified to find her home-baked quiche cast as the culprit. Worse, it's clear that some of the parishioners think the poisoning was deliberate? Fighting off the relentless demands of her daughter Diana, and plagued by toothache, Ellie's life is beset with problems ? complicated by the romantic attentions of not one but two suitors. Then a second wave of poisonings affects the community, and Ellie's investigative antennae are aroused. For all are connected with her young friend Felicity's past life?