A glimmer of a clue - Daryl Wood Gerber

When Courtney's friend Wanda gets into a ponytail-pulling wrestling match in public with a nasty local art critic, Courtney stops the fight with the help of a garden hose. But Lana Lamar has a talent for escalating things and creating tension, which she succeeds in doing by threatening a lawsuit, getting into yet another scuffle-in the midst of an elegant fundraiser, no less-and lobbing insults around like pickleballs. Next thing Courtney knows, Lana is on the floor, stabbed with a decorative letter opener from one of Courtney's fairy gardens, and Wanda is standing by asking "What have I done?" But the answer may not be as obvious as it seems, since Wanda is prone to sleepwalking and appears to be in a daze. Could she have risen from her nap and committed murder while unconscious? Or is the guilty party someone else Lana's ticked off, like her long-suffering husband? To find out, Courtney will have to dig up some dirt