The Birthday Weekend by Zoe Miller

It was a celebration to die for . . . What happened on holiday was supposed to stay on holiday - but that was before a body was found . . . Socialite Lucinda Oliver planned a lavish celebration for her fortieth birthday - a weekend escape at an Irish coastal town with her sister Stella and her closest friends. The weekend was to end with a blow-out party and a special announcement, one Lucinda had been dropping hints about for weeks. But before Lucinda could reveal her secret, she went missing. And now, six months later, her car has been found submerged in the Atlantic Ocean. Devastated, Stella decides to gather Lucinda's friends once more, in that same coastal town - the first time they've all been together since her disappearance. But soon she starts to suspect that one of the group knows the truth about Lucinda's accident. Which one of them is lying? Stella vows to find out, discovering that what happened to her sister links back to another birthday celebration, ten years ago...

A Suspenseful Page-Turner about Friendship, Sisterhood and Long-Buried Secrets.