"A riveting novel about Cape Cod, complicated families, and long-buried secret ... Ken and Abby Gardner lost their mother when they were small and they have been haunted by her absence ever since. Their father, Adam, a brilliant oceanographer, raised them mostly on his own in his remote home on Cape Cod, where the attachment between Ken and Abby deepened into something complicated--and as adults their relationship is strained. Now, years later, the...