Our Biggest Mistake

 When the truth hides behind ivy covered walls, justice comes at a deadly price.Sandra Floyd is thrilled when her brilliant half sister, Daisy Morgan, earns a coveted spot at Harvard. But only weeks into Daisy's first semester, she's found dead in the woods bordering campus. The police call it a tragic accident. Sandra knows better.Two years later, Sandra steps onto Harvard Yard with a single purp...