The worst thing I've done - Ursula Hegi

Friends since childhood, Annie, Jake and Mason had a special bond that transcended all other relationships. When Annie's parents die on her and Mason's wedding night, the three friends decide to raise Annie's infant sister, Opal, together. Entangled relationships ensue between them and Annie struggles to be both a sister and a mother to Opal. And then, on one fateful night, the friends step over a line that has shocking, unforeseen consequences. Beautifully written and brilliantly vivid, this truth-telling and engaging novel of friendship, love and death and - ultimately - of resilience and understanding, will resonate long after each character tells their story.